Is Nutrisse 4.3 Gyldenbrun safe for sensitive scalps or dry, damaged hair?

It can be used on normal hair, but the presence of ammonia, resorcinol, p‑aminophenol, hydrogen peroxide and fragrance means it may cause irritation or allergic reactions on sensitive scalps or already damaged hair; a patch test is strongly recommended before full application.

What is the role of ammonium hydroxide in the Nutrisse 4.3 Gyldenbrun hair colour formula?

Ammonium hydroxide raises the pH of the mixture, swelling the hair cuticle so that the dye pigments can penetrate the cortex and develop the intended colour, while also helping the peroxide to oxidise the colourants.

How often should Nutrisse 4.3 Gyldenbrun be applied and does it contain controversial chemicals that users should be aware of?

The dye is intended for single‑use applications every 4–6 weeks, following the package instructions; it contains ammonia, resorcinol, p‑aminophenol, hydrogen peroxide, several synthetic colourants and fragrance, which are considered controversial by some consumers due to potential irritation or sensitisation.

L'OREAL NORGE AS

Nutrisse 4.3 Gyldenbrun

Beauty

Product Insights

Nutrisse 4.3 Gyldenbrun is a permanent at‑home hair colour from L’Oréal, formulated to deliver a golden‑brown shade. The formula includes conditioning agents such as shea butter, olive and sunflower oils, as well as vitamin E and ascorbic acid for added shine and antioxidant protection. It also contains classic dye chemicals, ammonium hydroxide, resorcinol, p‑aminophenol, hydrogen peroxide, synthetic fragrances and several colourants (e.g., CI 77891), and lists soy as an allergen, which may irritate sensitive scalps or trigger allergic reactions.

Comparative Analysis

Positioned as a premium salon‑quality permanent hair colour for home use, Nutrisse 4.3 Gyldenbrun differentiates itself with a blend of conditioning oils and vitamins while maintaining a higher concentration of traditional ammonia‑based dye chemistry than many emerging “no‑ammonia” alternatives.

Ingredients

1166843AQUA / WATER , CETEARYL ALCOHOL , PROPYLENE GLYCOL , DECETH-3 , LAURETH-12 , AMMONIUM HYDROXIDE , OLETH-30, LAURIC ACID , HEXADIMETHRINE CHLORIDE , GLYCOL DISTEARATE , POLYQUATERNIUM-22 , ETHANOLAMINE , SILICADIMETHYL SILYLATE [NANO] / SILICA DIMETHYL SILYLATE , 2-METHYLRESORCINOL , CI 77891 / TITANIUM DIOXIDE , p-AMINOPHENOL , m-AMINOPHENOL , ASCORBIC ACID , TOCOPHEROL , SODIUM METABISULFITE , THIOGLYCERIN , TOLUENE-2,5-DIAMINE , HELIANTHUS ANNUUS SEED OIL / SUNFLOWER SEED OIL ,2-METHYL-5-HYDROXYETHYLAMINOPHENOL , DIMETHICONE , CARBOMER , RESORCINOL , ROSMARINUS OFFICINALIS(ROSEMARY) EXTRACT , EDTA , VITIS VINIFERA SEED OIL / GRAPE SEED OIL , PARFUM / FRAGRANCE (F.I.L. C212314/1).1190018, AQUA / WATER , HYDROGEN PEROXIDE , CETEARYL ALCOHOL , TRIDECETH-2 CARBOXAMIDE MEA, CETEARETH-25 , GLYCERIN , TETRASODIUM ETIDRONATE , TETRASODIUM PYROPHOSPHATE , SODIUM SALICYLATE , PHOSPHORIC ACID , PARFUM / FRAGRANCE.(F.I.L. C201679/1).1149755 A, AQUA / WATER , CETEARYL ALCOHOL , PARAFFINUM LIQUIDUM / MINERAL OIL , BEHENTRIMONIUM CHLORIDE , BUTYROSPERMUM PARKII BUTTER / SHEA BUTTER , OLEAEUROPAEA OIL / OLIVE FRUIT OIL , VACCINIUM MACROCARPON (CRANBERRY) SEED OIL , GLYCERIN , GLYCINE SOJA OIL / SOYBEAN OIL , RIBES NIGRUM SEED OIL / BLACKCURRANT SEED OIL , ISOPROPYL ALCOHOL , CITRIC ACID , PERSEA GRATISSIMA OIL /AVOCADO OIL , BHT , TOCOPHEROL , CHLORHEXIDINE DIGLUCONATE , CI 15985 /YELLOW 6 , CI 19140 / YELLOW 5 , LINALOOL , BUTYLPHENYL METHYLPROPIONAL , BENZYL ALCOHOL , PARFUM / FRAGRANCE( F.I.L. C207740/1).

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.