Acidic Bonding Curls Leave-In Treatment

leave-in conditioner · 250 ml · Haircare

Redken Acidic Bonding Curls Leave-In Treatment is free of essential oils, drying alcohol, sulfates, parabens and MI / MCI, going by its full 26-ingredient list, with glycerin, salicylic acid and panthenol. List checked November 5, 2026.

The catch: it contains fragrance, labelled fragrance allergens (Limonene) and silicones (Dimethicone, Amodimethicone).

Contains fragrance
No essential oils
Contains labelled fragrance allergens
No drying alcohol
Sulfate-free
Contains silicones
Paraben-free
No MI/MCI

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Key ingredients in Acidic Bonding Curls Leave-In Treatment

Glycerin
A humectant that helps hair stay soft and hydrated.
Salicylic acid (BHA)
Loosens flakes and build-up on the scalp.
Panthenol (pro-vitamin B5)
Helps hair hold moisture and feel smoother.

Full ingredient list, decoded

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

1Aqua / Water / EauAqua is the INCI name for water, the main base of many creams, lotions and cleansers…
2Decyl Glucoside Sodium Cocoyl Isethionate
3Cocamidopropyl BetaineA mild, coconut-derived cleansing agent that creates foam and helps other cleansers…
4Citric AcidCitric acid is a mild, naturally occurring acid found in citrus fruit. In skincare and…
5Sodium HydroxideSodium hydroxide is a strong alkali, also called caustic soda. In small amounts it…
6PanthenolPanthenol is a form of vitamin B5 that the skin and hair convert to pantothenic acid.…
7GlycerinGlycerin is a clear, thick, odorless liquid that pulls water into the skin and helps…
8DimethiconeDimethicone is a silicone, a light, water-resistant oil that forms a smooth, breathable…Silicones
9PEG-150 Distearate
10PPG-5-Ceteth-20A mild cleansing agent and emulsifier made from cetyl alcohol, a fatty alcohol, that…
11Sodium BenzoateSodium benzoate is the sodium salt of benzoic acid, a water-soluble powder used mainly…
12Sodium ChlorideA simple mineral salt, made of sodium and chloride, used mainly to adjust thickness and…
13PEG-55 Propylene Glycol OleateA nonionic surfactant, a cleansing molecule with no electrical charge, that helps oil…
14Propylene GlycolPropylene Glycol is a colorless, slightly syrupy liquid that attracts water and is…
15CarbomerA synthetic polymer made from acrylic acid that thickens water-based products and keeps…
16Parfum / FragranceAroma is a label term for a scent blend added to a product to give it a pleasant smell.Fragrance
17Coco-Caprylate/CaprateA light, coconut-derived ester that softens skin and hair and helps other ingredients…
18Polyquaternium-67
19Salicylic AcidSalicylic acid is a beta hydroxy acid, or BHA, that gently exfoliates skin and helps…
20AmodimethiconeAmodimethicone is a silicone with amine groups, nitrogen-containing parts that help it…Silicones
21Sodium PhytateA plant-derived salt that acts as a chelating agent, grabbing onto metal ions like…
22Glycol DistearateGlycol Distearate is a waxy solid made by joining glycol with stearic acid. Its main…
23Coco-BetaineA mild, coconut-derived surfactant that cleans and foams. It works as a gentle helper…
24Acrylates/Beheneth-25 Methacrylate CopolymerA film-forming polymer made from linked acrylic building blocks. Its main job is to…
25LimoneneLimonene is a natural scent molecule found in citrus peel oils. It gives products a…Labelled fragrance allergens
26Trideceth-6Trideceth-6 is a nonionic surfactant made from tridecyl alcohol and ethylene oxide. It…

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

Every flag we check

Check	Result	Ingredients found
Fragrance	Contains	Parfum / Fragrance (#16)
Essential oils	None listed	—
Labelled fragrance allergens	Contains	Limonene (#25)
Drying alcohol	None listed	—
Sulfates	None listed	—
Silicones	Contains	Dimethicone (#8), Amodimethicone (#20)
Parabens	None listed	—
MI / MCI	None listed	—
Formaldehyde releasers	None listed	—
Mineral oil & petrolatum	None listed	—
Lanolin	None listed	—
Chemical UV filters	None listed	—

Frequently asked questions

Is Redken Acidic Bonding Curls Leave-In Treatment fragrance-free?

No. Redken Acidic Bonding Curls Leave-In Treatment contains Parfum / Fragrance (ingredient 16 of 26).

Does Redken Acidic Bonding Curls Leave-In Treatment contain silicones, sulfates or parabens?

Silicones: yes (Dimethicone, Amodimethicone). Sulfates: none listed. Parabens: none listed.

Which ingredient rules does Redken Acidic Bonding Curls Leave-In Treatment pass?

Its full list passes our ingredient rules for MI allergy, acne-prone skin, body acne and fungal acne (malassezia). Key ingredients: Glycerin, Salicylic acid (BHA) and Panthenol (pro-vitamin B5).