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

The conditioner is designed for damaged to very dry hair and works well on normal to coarse textures, but the fragrance and certain preservatives may be irritating for very sensitive scalps, so a patch test is recommended.

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

Keratin is a structural protein that helps to rebuild the hair shaft, fill in gaps caused by damage, and improve strength and elasticity, resulting in smoother and less breakable hair.

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

For best results use the deep conditioner once or twice a week after shampooing, leaving it on for 2–5 minutes before rinsing; the formula includes typical conditioning agents and fragrance, but does not contain parabens, though it may contain silicones and common preservatives that some consumers prefer to avoid.

Syoss • 250ml

Syoss Intense Keratin Deep Conditioner

Conditioner

Product Insights

The Syoss Intense Keratin Deep Conditioner is a 250 ml hair care product formulated to deliver intensive moisturization and repair for damaged hair. Its formula combines keratin protein, conditioning agents and a fragrance blend that leave the hair feeling smoother and more manageable, while the high concentration of conditioning oils helps to reduce breakage. However, the presence of fragrance and typical cosmetic preservatives may irritate very sensitive scalps, and silicone‑based ingredients can cause buildup on fine hair over time.

Comparative Analysis

Positioned as a salon‑style, keratin‑rich deep conditioner that targets severely damaged hair, it differentiates itself from regular conditioners by offering intensive repair and stronger smoothing effects.

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Frequently Asked Questions

Everything you need to know about Syoss Intense Keratin Deep Conditioner.

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Syoss • 250ml

Syoss Intense Keratin Deep Conditioner

Conditioner

Product Insights

Comparative Analysis

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.