Acidic Grow Full System Scalp & Hair Serum

Full ingredient list, decoded

26 ingredients, in label order (highest amount first; below about 1% the order is free).

1. 1Aqua / Water / EauAqua is the INCI name for water, the main base of many creams, lotions and cleansers…
2. 2GlycerinGlycerin is a clear, thick, odorless liquid that pulls water into the skin and helps…
3. 3Hydroxyethylpiperazine Ethane Sulfonic Acid
4. 4CaffeineCaffeine is a stimulating compound found in coffee and tea. In cosmetics, it helps the…
5. 5PEG-40 Hydrogenated Castor OilPEG-40 Hydrogenated Castor Oil is a water-soluble emulsifier made from castor oil. Its…
6. 6Sodium HyaluronateHyaluronic acid is a sugar-based molecule, naturally found in skin, that holds a lot of…
7. 7PhenoxyethanolA synthetic preservative that helps stop bacteria, yeast and mold from growing in…
8. 8Citric AcidCitric acid is a mild, naturally occurring acid found in citrus fruit. In skincare and…
9. 9Bifida Ferment Lysate
10. 10Saccharomyces/Rice Ferment Filtrate
11. 11ChlorphenesinChlorphenesin is a synthetic preservative that mainly keeps mold and yeast from growing…
12. 12Propylene GlycolPropylene Glycol is a colorless, slightly syrupy liquid that attracts water and is…
13. 13Parfum / FragranceAroma is a label term for a scent blend added to a product to give it a pleasant smell.Fragrance
14. 14Tetrasodium Glutamate DiacetateTetrasodium Glutamate Diacetate is a chelating agent, a salt made from glutamic acid,…
15. 15Pentylene GlycolPentylene Glycol is a small, multi-tasking liquid that attracts water to the skin and…
16. 16Azelaic Acid
17. 17Linalyl AcetateLinalyl acetate is a fragrance ingredient, an ester found naturally in plants like…
18. 18Carvone
19. 19LinaloolLinalool is a fragrance compound found naturally in flowers and herbs, and in skincare…Labelled fragrance allergens
20. 20LimoneneLimonene is a natural scent molecule found in citrus peel oils. It gives products a…Labelled fragrance allergens
21. 21Citrus Limon Peel OilCitrus Limon Peel Oil is the scented oil pressed from lemon peel. It mainly adds…Essential oils
22. 22Citrus Aurantium Bergamia Peel OilEssential oils
23. 23Sodium BenzoateSodium benzoate is the sodium salt of benzoic acid, a water-soluble powder used mainly…
24. 24CitralCitral is a lemon-scented compound found in lemongrass and other citrus oils, used…Labelled fragrance allergens
25. 25Citrus Aurantium Peel OilCitrus Aurantium Peel Oil is a fragrant oil pressed from the peel of the bitter orange,…Essential oils
26. 26Pinene (N70058696/3)

Source: Redken product page, www.redken.co.uk/products/haircare/acidic-grow-full-system/acidic-grow, retrieved November 5, 2026.

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