PCA

CAS: 98-79-3 · EC: 202-700-3
Humectant
CosIng Ref: 77186
💡 For reference only. Does not constitute medical advice.
Description
Acts as a moisture-binding agent that helps draw water to the skin and maintain hydration levels in skincare formulations. Naturally occurs in human skin as part of the natural moisturizing factor, making it compatible with skin's own hydration mechanisms. While generally well-tolerated, some individuals may experience mild irritation with higher concentrations.
Synonyms
피씨에이 (ko) PCA (ja) L-2-Pyrrolidone-5-carboxylic acid pidolic acid
Properties
✗ Fragrance ✗ Preservative ✗ Colorant
Safety Rating
INTERNAL 5/10 · Moderate
Based on GHS hazard classification: H315=3, H318=5

Hazard Classification (GHS/CLP)

H-Code Description Category
H315 皮膚刺激 health
H318 嚴重眼損傷 health
H319 眼部刺激 health
H335 可能刺激呼吸道 health

Found in products

Total: 396
Product Brand Occurrences
COSRX Skin Barrier Moisturizing Body Cream COSRX 2
Dermalogica Circular Hydration Serum Dermalogica 2
DRUNK ELEPHANT Daytime Exhibit Morning - Skincare Set 50ml + 15ml + 8 ml + 5ml Drunk Elephant 2
Drunk Elephant Littles 7.0 Drunk Elephant 2
Drunk Elephant Protini™Peptide Resurfacing Serum 30ml Drunk Elephant 2
Drybar Liquid Glass Instant Glossing Rinse 240g Drybar 2
Dyson Chitosan™ Multi-use Styling Spray Dyson 2
Eucerin UreaRepair PLUS: 10% Urea Body Lotion (250ml) Eucerin 2
Eye Primer Anastasia Beverly Hills 2
Grande Cosmetics Lash & Brow Vibes Set Grande Cosmetics 2
Grande Cosmetics Mini Magic Gift Set Grande Cosmetics 2
Grow Gorgeous Repair Rescue Conditioner 250ml Grow Gorgeous 2
Grow Gorgeous Volume Bodifying Conditioner 250ml Grow Gorgeous 2
HAIRBURST Conditioner for Dry & Damaged Hair 350ml Hairburst 2
HAIRBURST Hair Burst Shampoo Mini 60ml Hairburst 2
HOLIKA HOLIKA Puri Pore No Sebum Compact Powder 8g Holika Holika 2
JOONBYRD Daydreamer Body Serum 100ml JOONBYRD 2
JOONBYRD Little Love Body Lotion 300ml JOONBYRD 2
JOONBYRD Sunday Sofa Body Butter 200ml JOONBYRD 2
JOONBYRD We Belong Together Body & Hand Essentials Kit JOONBYRD 2
JOONBYRD Wonderland Hand Lotion 300ml JOONBYRD 2
KMS HeadRemedy Deep Cleanse Shampoo KMS 2
KVD Beauty Good Apple Full-Coverage Liquid Foundation Light 30ml KVD Beauty 2
Lola From Rio Morte Subita - Hydration Shampoo 250ml Lola From Rio 2
Long-Wearing Brow Set Anastasia Beverly Hills 2
L'Oréal Paris Age Perfect Serum Le Duo 30ml L'Oreal Paris 2
Marrakesh Strengthening Shampoo SHAMPOOHOTEL 2
Me+ 30ml Marula Oil 30ml Me+ 2
MODAMODA 1-Step Easy Hair Tattoo Brush 5ml*4ea (Black/Natural Brown) MODAMODA 2
Moisture Rich Curl Shampoo - 10.0 oz KRISTIN ESS HAIR 2
Moroccanoil Blonde Perfecting Purple Shampoo 200 ml Moroccanoil 2
Moroccanoil Color Depositing Mask- Cocoa 200ml Moroccanoil 2
Moroccanoil High Shine Gloss Mask Moroccanoil 2
NATURE REPUBLIC Argan Essential Deep Care Conditioner 300ml NATURE REPUBLIC 2
Neutrogena® Hydro Boost Gel Cream Neutrogena 2
Neutrogena Hydro Boost Hydrating Eye Cream Hyaluronic Acid, Vitamin E, Amino Acids, Electrolytes Neutrogena 2
Noughty Hello Curls Define & Reshape Curl Primer 200ml Noughty 2
Olaplex No. 5 Bond Maintenance Conditioner 250 ml Olaplex 2
Ole Henriksen Plumping Peptide Pair Mini Skincare Duo Ole Henriksen 2
Ole Henriksen Strength Peptide Barrier Boost Moisturiser with hyaluronic acid and niacinamide 15ml Ole Henriksen 2
Ole Henriksen The Glow Cycle Skincare Set Ole Henriksen 2
Oribe Hair Alchemy Resilience 洗髮露 Oribe 2
OUAI Haircare Healthy Hair is on the OUAI Holiday Kits OUAI Haircare 2
Plump-C™ Tripeptide Lippe Mask Drunk Elephant 2
Rausch Anti-Dandruff Conditioner with Coltsfoot 150ml Rausch 2
Rausch Degreasing Shampoo with Seaweed 200ml Rausch 2
Revolution Superfix Grip Primer Revolution 2
SALT & STONE Black Rose & Oud Hand Cream 60ml SALT & STONE 2
SALT & STONE Santal & Vetiver Deodorant SALT & STONE 2
Seapuri Dr. 33 Hair Ampoule 20ml Seapuri 2
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