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

The booster works well for dry or normal hair by adding moisture and shine, but its fragrance, phenoxyethanol and certain conditioning salts can irritate very sensitive scalps, so users with known sensitivities should perform a patch test before full application.

What is the specific role and benefit of hydrolyzed silk in this hair booster?

Hydrolyzed silk (isostearoyl hydrolyzed silk) supplies low‑molecular‑weight proteins that penetrate the hair shaft, helping to reinforce the cuticle, improve elasticity and give the hair a silky, smooth texture.

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

For best results, apply the booster once a week after shampooing, distributing it evenly through damp hair and leaving it on for a few minutes before rinsing. The product contains silicones (dimethicone, amodimethicone) and the preservative phenoxyethanol, which some consumers consider controversial, though they are used at safe concentrations in professional hair care.

Milbon • 9g

Milbon No. 4 weekly booster medium hair

Hair Booster

Product Insights

Milbon No. 4 weekly booster is a professional hair treatment designed for medium‑strength hair, offering a blend of conditioning silicones, silk protein, squalane and hydrolyzed collagen that can add smoothness, shine and a temporary strength boost. The formula also includes fragrance, phenoxyethanol and isopropyl alcohol, which may irritate very sensitive scalps or trigger allergic reactions in fragrance‑sensitive users. While the product delivers noticeable conditioning benefits, the presence of silicones and synthetic preservatives may lead to buildup over time for those who prefer silicone‑free or fully natural hair care routines.

Comparative Analysis

Positioned as a weekly medium‑hair booster, this Milbon formula distinguishes itself in the professional salon market by combining silicone smoothers with silk protein and squalane for a high‑gloss finish, targeting consumers who seek salon‑grade conditioning without a daily treatment.

Ingredients

WATER, DIMETHICONE, CETYL ALCOHOL, STEARTRIMONIUM CHLORIDE, AMODIMETHICONE, ISOSTEAROYL HYDROLYZED SILK, SQUALANE, HYDROLYZED COLLAGEN, ISOSTEARIC ACID, DICOCODIMONIUM CHLORIDE, LACTIC ACID, ISOPROPYL ALCOHOL, ETHYLHEXYL METHOXYCINNAMATE, PHENOXYETHANOL, FRAGRANCE

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.

Frequently Asked Questions

Everything you need to know about Milbon No. 4 weekly booster medium hair.

Naturalna wcierka do włosów na noc.

175 ml

Wcierka do włosów neboa

View Analysis

Unilever, Tresemmé

119 g, 4.2 oz

Extra Hold Hairspray

View Analysis

Hairwell, EUCO, SERPOL-COSMETICS

500 ml

7-Kräuter-Shampoo

View Analysis

Elidor

350 ml

Elidor Biberiye Dökülme Karşıtı Saç Bakım Kremi 350 ml

View Analysis

180 ml

Elseve Rapid Restore

View Analysis

Elidor

90 ml

Elidor Biberiye Dökülme Karşıtı Tonik 90 ml

View Analysis

Milbon • 9g

Milbon No. 4 weekly booster medium hair

Hair Booster

Product Insights

Comparative Analysis

Ingredients

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.