Sulfate-Free Shampoo for Curly Hair UK: The Complete Guide to Clarifying, Chelating and Gentle Cleansing
Ishant SharmaShare
This guide covers the full spectrum from co-washing through to chelating, the SCI surfactant science that makes the Pure Curls House shampoo bars genuinely different from most sulfate-free options on the market, and the specific UK hard water adaptation that turns a good cleansing routine into one that actually produces consistent curl results.
Why Do Sulfates Strip Curly Hair So Much Harder Than Straight Hair?
Sodium lauryl sulfate and sodium laureth sulfate are anionic surfactants. They clean by reducing the surface tension between water and the oils sitting on the scalp and hair shaft, allowing water to carry the oils away during rinsing. They are effective. They are also potent enough to remove not just the excess sebum at the scalp but the structural lipid layer protecting the cuticle surface, and this is where the problem for curly hair specifically lies.
The Remedy Nutrition 2026 analysis explains the mechanism directly: curly hair has naturally elevated cuticle porosity because its elliptical cross-section and curved shaft mean the cuticle scales cannot lie as flat as they do on a straight, circular strand. Those partially raised cuticle scales allow moisture to escape rapidly when the protective lipid layer is stripped. The Editorials UK 2026 guide confirms: "curly hair retains less moisture and often responds better to sulfate-free formulas."
But there is a second, geometry-based problem specific to curly hair. The twisting, helical shaft means scalp sebum cannot travel down the length of the strand the way it does on straight hair. Sebum, which normally replenishes the lipid layer between washes, never reaches the mid-lengths and ends of curly hair in meaningful quantities. When sulfates strip whatever lipid protection is already there, curly hair has no internal mechanism to replace it the way straight hair can. The result is a dryness cycle that compounds with every sulfate wash: more stripping, slower recovery, progressively drier and more brittle ends.
The Curly Hair Cleansing Spectrum: From Co-Wash to Chelating
Curly hair cleansing is not a single option. It is a spectrum of four distinct approaches, each serving a different function and appropriate for different wash days, hair types, and conditions.
Co-Washing
Cleansing with conditioner only. Removes sweat and light product residue without any surfactant contact. Maximum moisture retention but minimal cleansing power. Works best for hair types where scalp cleansing is not needed frequently.
Low-Poo
Sulfate-free shampoo with gentle surfactants (SCI, Cocamidopropyl Betaine, Decyl Glucoside). The everyday cleanse for curly hair. Removes scalp sebum and light product buildup without stripping the cuticle lipid layer. The Pure Curls House shampoo bars are low-poo formulas.
Clarifying
Stronger shampoo containing sulfates or olefin sulfonates designed for a periodic deep reset. Removes product buildup, silicones, and accumulated styling residue that gentle surfactants cannot lift. Used every three to six weeks, not regularly.
Chelating
The most powerful wash. Contains chelating agents (EDTA, phytic acid, citric acid) that chemically bind to and remove the calcium and magnesium mineral deposits from UK hard water that no other cleansing method removes. Used monthly in hard water areas.
The KUURL 2026 low-poo guide describes the spectrum accurately: "co-wash gives maximum conditioning with minimal cleansing, low-poo sits in the middle with gentle cleansing and light conditioning, and clarifying delivers deep cleansing with minimal conditioning." Most UK curly hair people need to move between these options depending on the week: low-poo most wash days, chelating monthly, and clarifying when buildup signals appear regardless of schedule.
Clarifying vs Chelating: The Critical Distinction UK Curly Hair People Get Wrong
This is the most commonly confused distinction in curly hair cleansing, and for UK curly hair it is particularly important because the two problems these washes address are fundamentally different.
The Mestiza Muse June 2026 guide makes the chemistry clear with a comparison table. A regular shampoo removes oils, sweat, and sebum. A clarifying shampoo removes all of that plus product buildup (styling residue, silicones, accumulated cream). A chelating shampoo removes all of the above plus hard water minerals (calcium, magnesium), chlorine, and copper. An apple cider vinegar rinse removes a small amount of surface mineral at best and does not address product buildup or mineral deposits effectively.
| What Is on the Hair | Regular Shampoo | Clarifying Shampoo | Chelating Shampoo |
|---|---|---|---|
| Oils, sweat, sebum | Yes | Yes, stronger | Yes |
| Styling product buildup | Mostly | Yes, fully | Yes, fully |
| Non-water-soluble silicones | No | Yes | Yes |
| Hard water minerals (calcium, magnesium) | No | Barely | Yes, this is its job |
| Chlorine, copper, salt (swimmers) | No | Barely | Yes |
The practical implication for UK curly hair: if your products have stopped working, your deep conditioner feels pointless, and your curls feel coated and limp despite a regular cleansing routine, a clarifying shampoo will not fix this if the problem is hard water mineral buildup. The Curls Guide UK hard water analysis confirms that "chelating shampoos specifically designed to remove mineral deposits, not just regular clarifying products, can restore curls within one wash." Clarifying removes product. Chelating removes minerals. They are not interchangeable.
What Makes a Good Sulfate-Free Shampoo for Curly Hair?
The Surfactant Chemistry That Actually Matters
Not all sulfate-free shampoos are equal. The Zenvy 2026 curly girl method guide points out an important nuance that most sulfate-free guides miss: "sulfate-free no longer means milder. Some sulfate-free surfactants (older olefin sulfonates) are as stripping as SLS." The marketing label "sulfate-free" tells you what is absent but nothing about what is present. The surfactant identity matters more than the sulfate-free claim.
The surfactants to actively look for in a genuinely curl-friendly shampoo are Sodium Cocoyl Isethionate (SCI), Cocamidopropyl Betaine (CAPB), Decyl Glucoside, and Coco-Glucoside. The surfactants to avoid even in sulfate-free products are olefin sulfonates (which appear on labels as sodium C14-16 olefin sulfonate) and high concentrations of cocamide DEA.
| Surfactant | CGM Status | Cleansing Level | pH Range | Curl Verdict |
|---|---|---|---|---|
| Sodium Lauryl Sulfate (SLS) | Avoid | Very high | 7.0–8.0 | Strips lipid layer. Do not use regularly on curly hair. |
| Sodium Laureth Sulfate (SLES) | Avoid | High | 6.5–7.5 | Milder than SLS but still strips the cuticle lipid layer in curly hair. |
| Sodium C14-16 Olefin Sulfonate | Caution | High | 6.5–8.0 | Often appears in "sulfate-free" products. As stripping as SLS for curly hair. Avoid in daily cleansers. |
| Sodium Cocoyl Isethionate (SCI) | Approved | Mild-moderate | 5.0–7.0 | Gold standard for curly hair shampoo bars. Hair-compatible pH, gentle, SCI deposits a conditioning feel. Used in PCH shampoo bars. |
| Cocamidopropyl Betaine (CAPB) | Approved | Mild | 5.0–6.0 | Co-surfactant that boosts foam and reduces irritation. Found in baby shampoos. Enhances SCI performance. |
| Decyl Glucoside / Coco-Glucoside | Approved | Mild | 5.0–7.0 | Plant-derived, biodegradable, very gentle. Good co-surfactant for co-wash and low-poo formulas. |
Why pH Matters More Than Most Guides Acknowledge
The scalp and hair shaft prefer a pH environment of 4.5 to 5.5. The cuticle scales sit flattest and most protective at this slightly acidic pH. When a shampoo is alkaline, the cuticle scales open, the shaft swells, and friction between strands increases dramatically. Traditional soap bars sit at pH 9 to 10, which is why hair washed with soap feels rough, tangled, and frizzy regardless of the soap's ingredient list.
The Batch and Bubble April 2026 SCI guide explains this is one of SCI's structural advantages: "SCI sits naturally at a slightly acidic pH, which means it works with your hair's chemistry rather than against it, unlike traditional soap-based bars which sit at pH 9 to 10 and can disrupt the hair cuticle." The Pure Curls House shampoo bars are syndet (synthetic detergent) bars formulated to maintain this hair-compatible pH throughout their use, unlike both liquid sulfate shampoos and soap bars.
Which Pure Curls House Shampoo Bar for Which Wash Day?
Cocoa Vanilla Moisturising Shampoo Bar
The everyday low-poo. SCI-based syndet formula at hair-compatible pH. Cleans the scalp of sebum and light product residue without stripping the cuticle lipid layer. Cocoa vanilla scent, CGM-approved surfactants. Apply to scalp only, allow lather to travel through lengths during rinsing. £13 for 115g.
Rosemary Root Stimulating Shampoo Bar
The chelating wash. Removes UK hard water calcium and magnesium mineral deposits from the cuticle surface that gentle sulfate-free washes cannot address. Rosemary Ayurvedic botanical complex supports scalp circulation during the chelating contact time. Always follow with the Butter Treatment deep conditioner. £13 for 115g.
Mint Chocolate Strengthening Shampoo Bar
The strengthening wash for high porosity or heat/chemically damaged curly hair. Protein-enriched formula provides structural reinforcement alongside cleansing for hair that has lost cuticle integrity through damage. Peppermint stimulates scalp circulation during the wash step. £13 for 115g.
Shop: The Pure Curls House Cleansing System
- Cocoa Vanilla Moisturising Shampoo Bar - SCI-based everyday low-poo. pH-balanced, CGM-approved, cleans without stripping. £13 (115g).
- Rosemary Root Stimulating Shampoo Bar - Monthly chelating wash for UK hard water mineral removal. Rosemary Ayurvedic complex. £13 (115g).
- Mint Chocolate Strengthening Shampoo Bar - Strengthening wash for high porosity or protein-needing curly hair. Peppermint scalp stimulation. £13 (115g).
- Scalp Massager and Shampoo Brush - Distributes shampoo bar lather evenly and provides scalp massage during cleanse. Used with any of the three bars. £9.99.
- Mint and Cocoa Ayurvedic Butter Treatment - Must be applied immediately after every chelating wash session to replenish the moisture the chelating process removes. £21 (180g).
What Pure Curls House customers say about the shampoo bars
Verified purchase reviews from Judge.me
"Smell lovely, lathers well, I use with the scalp brush. My hair feels great. My scalp feels so much healthier and I can see new growth at my hairline. The scalp massager with the shampoo bar combination is something I didn't know I needed."
"My hair feels really clean after using this and a little goes a very long way. I believe I am giving my hair and scalp something that is genuinely nourishing rather than just cleaning. The scalp brush makes a real difference to how thorough the cleanse feels."
"I have purchased the ritual bundle and am very pleased with all three products. The shampoo bar works brilliantly, my scalp feels cleaner than it has with any liquid shampoo I have tried. The curl cream gives beautiful definition and the treatment has changed the moisture levels completely."
"My scalp feels calm for the first time in years. My hairline, which had been thinning at one temple, seems to be filling back in with consistent use. The shampoo bar does not dry anything out and detangling after using it has become so much easier."
How to Wash Curly Hair With a Sulfate-Free Shampoo Bar: The Correct Technique
Technique matters as much as product choice for sulfate-free shampoo bar washing. The most common mistakes with shampoo bars are applying them incorrectly or rinsing with water that is too hot, both of which produce the unsatisfactory results many people blame on the product itself.
Saturate the Hair and Scalp Thoroughly With Lukewarm Water
Wet the hair completely before any product contact. Saturated hair allows the shampoo bar lather to spread and distribute evenly rather than concentrating on dry sections. Lukewarm water, not hot, is the correct temperature throughout the wash process. Hot water opens the cuticle excessively and accelerates the moisture loss the sulfate-free approach is designed to prevent. For type 4 coily hair, section the hair into four to six sections before wetting to ensure even water penetration through dense curl patterns.
Apply Lather to the Scalp Only, Not the Lengths
Wet the shampoo bar and work up a lather between your palms or directly on the scalp. Apply only to the scalp sections. Use the Scalp Massager and Shampoo Brush to distribute the lather and massage firmly into the scalp for two to three minutes. The Remedy Nutrition 2026 guide specifies the correct technique: "apply sulfate-free shampoo only to the scalp. Work it in with fingertip pressure in circular motions for 60 seconds. The scalp is where oil, flaking, and product buildup accumulates; the lengths need only the rinse runoff." Applying shampoo directly to the curly lengths strips them unnecessarily. The lather running through the lengths during rinsing provides all the cleansing the lengths actually need.
Rinse Thoroughly With Cool Water
Rinse the scalp completely until no lather remains. Finish with a cool water rinse across the full length of the hair. The cool water contracts the cuticle scales that may have slightly opened during the warm water wash phase, smoothing the surface and reducing frizz during the subsequent conditioning step. For hard water areas, this cool water rinse still carries mineral deposits onto the hair during rinsing, which is why the monthly chelating wash is a pre-cleansing step rather than a post-cleansing one: chelating on clean, mineral-free hair allows the chelating agents to work on the cuticle surface without competing with product residue.
Proceed Directly to Conditioning While Hair Is Still Wet
Apply the Superfood Hydra Curl Conditioner With Plant Peptides to damp hair immediately after rinsing the shampoo. Do not allow the hair to begin air drying between shampoo and conditioner steps. Sulfate-free cleansing leaves the cuticle in a better state than sulfate washing but the hair is still at its most receptive to conditioning when damp and freshly cleansed. The PurePep small-molecule plant peptides in the conditioner penetrate most effectively in this window. On regular wash days, follow the conditioner with styling products. On deep conditioning wash days, apply the Ayurvedic Butter Treatment first and allow it to sit under heat before the conditioner step.
Signals That Tell You Which Cleanse Your Curly Hair Needs This Week
🔨 Signs You Need a Clarifying or Chelating Wash
- Curls feel limp and won't hold their shape even after styling
- Hair feels heavy or coated no matter how little product you use
- Deep conditioner feels like it is not penetrating at all
- Hair feels mushy or gummy when wet but dry and straw-like when dry
- Increased tangling and frizz despite regular conditioning
- Scalp feels itchy or produces visible flaking
- Products stopped working after a routine that was previously consistent
📌 Signs You Need Chelating Specifically (Not Just Clarifying)
- Hair feels stiff, dull, or brittle even after clarifying washes
- Curls feel coated in something that conditioning cannot shift
- Hair absorbs styling products but they sit on the surface rather than working in
- You notice white mineral film on shower glass or kettle (hard water sign)
- Definition and bounce have progressively declined over weeks
- You have not chelated in more than six weeks and live in a hard water area
- Results after chelating are dramatically better than after clarifying alone
The KUURL 2026 clarifying guide offers a useful diagnostic principle: "if your routine suddenly stops working, clarify first before changing products." For UK curly hair in hard water areas, extend this: if clarifying does not restore the results, chelate. Most situations where UK curly hair routines inexplicably stop working are hard water mineral buildup problems, not product failures.
How Often Should You Wash Curly Hair With Sulfate-Free Shampoo?
Wash Frequency by Curl Type
Curly hair does not need daily washing. The Remedy Nutrition 2026 guide provides frequency guidance by curl type: wavy type 2 hair typically washes every three to five days. Type 3 curls do well at every five to seven days. Type 4 coily hair often washes only once weekly, with co-washes or water rinses between full wash sessions. These are starting points, not rules. Scalp oil production, exercise frequency, product use, and UK seasonal conditions all affect the correct frequency for individual hair.
The UK Seasonal Frequency Adjustment
UK winter conditions (central heating indoors, cold outdoor air) both dry the hair and the scalp. Many UK curly hair people find their scalp produces more oil in winter as a compensatory response to the drying environment, requiring slightly more frequent washing. UK summer conditions can mean more sweat and product buildup from outdoor activity, requiring the same or slightly more frequent washing. The general principle is to listen to the scalp rather than washing on a fixed schedule regardless of what the hair actually needs.
The Pure Curls House specialist perspective on why shampoo bars work better than liquid sulfate-free shampoos for UK curly hair: Most liquid sulfate-free shampoos reformulate their cleansing performance out of the product to avoid the stripping that sulfates produce, but they replace stripping with insufficient cleansing. The result is a shampoo that neither strips nor cleans effectively, leaving curly hair with a false sense of moisture that is actually product accumulation rather than genuine strand hydration. A well-formulated SCI syndet shampoo bar cleans the scalp genuinely and effectively without stripping, because the chemistry of the isethionate surfactant family is fundamentally different from the sulfate family rather than merely a diluted version of it. Additionally, syndet shampoo bars have no water as a carrier, which means a higher percentage of the active cleansing and botanical ingredients are in contact with the scalp per wash. The Rosemary Root Stimulating Shampoo Bar delivers its Ayurvedic chelating complex at full concentration without the dilution that liquid formulas require to maintain shelf stability. This is one of the reasons the scalp-feel difference between a quality syndet bar and a typical liquid sulfate-free shampoo is immediately noticeable: the bar is doing more work per wash with less chemical overhead.
More customers on cleaner scalps, better results, and the shampoo bar difference
Verified Judge.me reviews
"This conditioner smells amazing and leaves hair really soft. Since adding the conditioner and butter treatment together my hair has improved noticeably. Less tangling, more definition, less breakage on damp hair. The shampoo bar gets everything genuinely clean without any dryness."
"I'm in my 50s and have tried a LOT of hair products over the years. I've never had such definition and perfect ringlets. Have had people stop me in the street and ask what I use. The shampoo bar leaves my scalp feeling properly clean in a way liquid shampoos never did."
"Love this bundle, made my wash days so quick and simple. The shampoo bar works brilliantly with the scalp brush. My hair is soft, the detangling is easy, and my curls lasted all week. This is the complete routine I have been looking for."
"When I got the amount right, perfect defined curls with bounce that lasted three days. So many times I thought I had found my holy grail only to be disappointed. The shampoo bar and treatment combination changed everything. The switch away from silicone-heavy products made an immediate difference."
Shop: The Complete Wash Day System After Cleansing
- Superfood Hydra Curl Conditioner With Plant Peptides - Applied immediately post-shampoo while hair is still wet. PurePep structural support alongside detangling slip. From £11.
- Mint and Cocoa Ayurvedic Butter Treatment - Deep conditioning step always after chelating wash, and every wash day for type 3c to 4c. 25+ Ayurvedic botanicals. £21.
- All in 1 Curl Cream - Applied to dripping-wet hair after conditioning. Phytocurl Sculptgel plant hold, no silicones, no drying alcohols. From £12 (125g), £19 (250g).
- Plant Peptide Butter Cream - LOC cream layer for type 3c to 4c textures after sulfate-free wash. Avocado oil and mango butter seal the moisture from the wash day deep conditioning. 192g, £21.
- Rosemary Ayurvedic Oil - LOC oil layer after washing. Seals moisture and provides cuticle-protecting antioxidant Ayurvedic botanicals. £23.
- Mulberry Silk Pillowcase - Preserves the clean wash day results overnight by preventing friction-driven cuticle disruption during sleep. £34.99.
Why Choose The Pure Curls House for Sulfate-Free Curly Hair Cleansing
SCI Syndet Bars, Not Compromised Liquid Reformulations
The three PCH shampoo bars use Sodium Cocoyl Isethionate, the gold standard sulfate-free surfactant, in a syndet bar format that delivers higher active concentration per wash than liquid diluted alternatives.
Chelating Built Into the System for UK Hard Water
The Rosemary Shampoo Bar handles UK hard water mineral deposits that no other part of the routine can address. Monthly chelating is not an add-on. It is built into the PCH cleansing system from the start.
Ayurvedic Botanical Complex During Cleansing
Rosemary, peppermint, and bhringraj deliver scalp circulation support during the wash step itself, making the shampoo bar a multi-benefit treatment rather than a purely functional cleanse.
Three-Bar System Covering All Cleansing Modes
Moisturising bar for regular wash days, Rosemary chelating bar for hard water resets, Mint Chocolate strengthening bar for protein-balance wash days. One system that covers every cleansing scenario curly hair in the UK faces.
pH-Balanced for Cuticle Compatibility
Syndet bars at hair-compatible pH 4.5 to 5.5 keep the cuticle smooth throughout the wash process. Traditional soap bars at pH 9 to 10 and hot water both open the cuticle and increase post-wash frizz regardless of conditioner quality.
75-Day Money Back Guarantee
The cleansing system takes two to three wash cycles for the scalp to recalibrate away from sulfate-driven dryness. The guarantee covers enough sessions to genuinely experience the difference the SCI syndet approach makes.
What Makes The Pure Curls House Shampoo Bars Different
Most sulfate-free shampoo brands either dilute their cleansing performance to avoid stripping or use olefin sulfonate as a sulfate replacement that strips just as aggressively. The PCH shampoo bars take neither shortcut. Here is what that means specifically:
- SCI primary surfactant: gentler chemistry, not just a diluted sulfate
- Syndet bar format: higher active concentration per wash than liquid sulfate-free shampoos
- pH 4.5 to 5.5 compatibility: works with hair chemistry, not against cuticle scales
- Chelating rosemary bar: addresses UK hard water that no sulfate-free shampoo can
- Ayurvedic botanical complex active during the wash step itself
- Three-bar system covers co-wash through chelating in one product range
- No silicones, no sulfates, no mineral oil, no parabens across all three bars
- 75-day guarantee covers full scalp recalibration period from previous sulfate routine
Frequently Asked Questions About Sulfate-Free Shampoo for Curly Hair
Why is sulfate-free shampoo better for curly hair?
Curly hair has a curved, elliptical shaft with naturally elevated cuticle porosity that allows moisture to escape rapidly when the protective lipid layer is stripped by harsh sulfate surfactants like SLS and SLES. Additionally, scalp sebum cannot travel down the twisting curl shaft to replenish this lipid layer the way it does on straight hair, so curly hair has no internal recovery mechanism after sulfate stripping. Sulfate-free shampoos using milder surfactants like Sodium Cocoyl Isethionate clean the scalp effectively without disrupting the cuticle lipid layer that curly hair depends on for moisture retention and frizz resistance.
What is the difference between clarifying and chelating shampoo for curly hair?
Clarifying shampoo uses strong surfactants to remove product buildup, silicones, and accumulated styling residue that gentle sulfate-free formulas leave behind. Chelating shampoo does everything clarifying does, plus it contains chelating agents (EDTA, phytic acid, citric acid) that chemically bind to and remove hard water mineral deposits (calcium, magnesium) that no surfactant alone can lift from the hair shaft. For the 60 to 65 percent of UK households in hard water areas, chelating is the more impactful wash when curls have stopped responding, because the problem is mineral buildup rather than product buildup.
Are shampoo bars good for curly hair in the UK?
Syndet shampoo bars formulated with Sodium Cocoyl Isethionate are excellent for curly hair in the UK. The syndet (synthetic detergent) format delivers a higher concentration of active cleansing ingredients per wash than liquid sulfate-free shampoos. SCI sits naturally at a pH of 5 to 7, compatible with the hair and scalp's preferred slightly acidic environment of 4.5 to 5.5, unlike traditional soap bars which sit at pH 9 to 10 and disrupt the cuticle. The key distinction is syndet shampoo bars specifically, not general soap bars, which are alkaline and unsuitable for curly hair despite also being solid format.
How often should I clarify curly hair?
Clarifying should happen based on signals, not a fixed schedule. When curls feel limp, weighted down, or products stop working effectively, that is the signal to clarify. Most curly hair people need a clarifying reset every three to six weeks depending on how many products they use and how their hair accumulates buildup. Monthly chelating (to address UK hard water minerals) and symptom-based clarifying (for product buildup) together form a complete cleansing reset strategy. Always follow any clarifying or chelating wash with a deep conditioning treatment to replenish what the stronger cleanse removes.
Does UK hard water affect how well sulfate-free shampoo works?
Yes significantly. UK hard water in areas like London, Kent, and the South East can exceed 300 parts per million of dissolved calcium and magnesium. Sulfate-free shampoos cannot remove these mineral deposits, which accumulate on the cuticle surface with every wash and progressively reduce how well all subsequent products, including conditioners, deep treatments, and styling products, can penetrate and work. Monthly chelating with a shampoo containing EDTA or phytic acid removes these deposits. After chelating, sulfate-free shampoo performs noticeably better because the cuticle surface it is washing is clean rather than mineral-coated.
What is co-washing and is it right for my curl type?
Co-washing means cleansing the scalp and hair with conditioner only, using no surfactant shampoo at all. It provides maximum moisture retention but minimal cleansing power, making it most suitable for type 4a to 4c coily hair with very dry strands and a scalp that does not overproduce sebum. For type 2 wavy and type 3 curly hair, co-washing alone is often insufficient to remove scalp oil and product buildup and leads to limp, weighted-down curls over time. Most UK curly hair people use co-washing between occasional sulfate-free shampoo wash days rather than as their only cleansing method.
Is Sodium Cocoyl Isethionate safe for curly hair and the scalp?
Sodium Cocoyl Isethionate (SCI) is one of the safest surfactants available for scalp and hair use, rated 10 out of 10 for safety by the HairAide 2026 ingredient database and classified as dermatologist-recommended for sensitive skin and eczema-prone individuals. It is Curly Girl Method approved, approved for all curl types 3a through 4c, and suitable for children's hair. The ingredient is derived from coconut oil fatty acids and sits naturally at a slightly acidic pH that is compatible with the scalp's preferred environment of 4.5 to 5.5, making it one of the most reliable sulfate-free cleansing agents for curly and textured hair.
Not sure which of the three PCH shampoo bars suits your curl type and UK water area? Take the 2-minute curl quiz for a personalised cleansing and routine recommendation.