Based on its formula, is this product safe for sensitive or dry hair?

The conditioner is formulated for dry, damaged hair and includes soothing agents like panthenol and apricot kernel oil, but it also contains fragrance allergens and silicones that can trigger irritation on very sensitive scalps, so individuals with known sensitivities should patch‑test before regular use.

What is the specific role and benefit of hydrolyzed keratin in this conditioner?

Hydrolyzed keratin supplies short protein fragments that can temporarily bind to the hair cuticle, helping to fill gaps, improve elasticity and reduce breakage, thereby enhancing the repaired feel of damaged strands.

What is the optimal application frequency for this conditioner, and does it contain any controversial chemicals?

Use it after each shampoo by applying a generous amount to wet hair, focusing on the mid‑lengths and ends, then rinse after 2–3 minutes; the formula includes silicones such as dimethicone and dimethiconol, which some consumers consider controversial due to potential buildup, as well as fragrance allergens, so regular users may alternate with a silicone‑free conditioner if desired.

Henkel, Syoss • 300 ml

Repair Therapy Conditioner

Hair

Product Insights

The Repair Therapy Conditioner by Henkel Syoss is a 300 ml plastic-packaged rinse-out treatment created for damaged, dry hair. Its formula blends conditioning agents such as cetearyl alcohol, dimethicone, and a silicone‑quaternary complex with protein‑rich hydrolyzed keratin, panthenol, and apricot kernel oil to smooth, moisturize and help restore weakened strands. However, the conditioner also contains fragrance allergens (hexyl cinnamal, butylphenyl methylpropional, benzyl salicylate, linalool, benzyl alcohol, limonene) and a silicone component, which may irritate very sensitive scalps or cause buildup with frequent use.

Comparative Analysis

Targeted at dry, damaged hair, it positions itself as a repair therapy conditioner that combines silicone‑based smoothing agents with hydrolyzed keratin to strengthen and smooth strands, setting it apart from standard moisturising conditioners.

Ingredients

Aqua, Cetearyl Alcohol, Quaternium-87, Stearamidopropyl Dimethylamine, Dimethicone, Distearoylethyl Hydroxyethylmonium Methosulfate, Isopropyl Myristate, Citric Acid, Hydrolyzed Keratin, Dimethiconol, Glycerin, Prunus Armeniaca Kernel Oil, Panthenol, Propylene Glycol, Phenoxyethanol, Sodium Methylparaben, Parfum, Polyquaternium-10, Hexyl Cinnamal, Butylphenyl Methylpropional, Benzyl Salicylate, Linalool, Benzyl Alcohol, Limonene

84%

35%

Unlock Deep Cosmetic Safety Check

Scan this and millions of other cosmetics with the free NutrScan app to discover ingredient safety, potential concerns, and detailed product analysis before every purchase.