Is Nutrisse 1 Sort suitable for sensitive scalps or color‑treated hair?

The dye contains ammonia, hydrogen peroxide and resorcinol, which are known irritants, so it may be too harsh for extremely sensitive scalps, but the added conditioning oils can help mitigate dryness on previously treated hair; a 48‑hour patch test is strongly recommended.

What role does resorcinol play in this hair dye, and are there safety concerns?

Resorcinol acts as a coupling agent that develops the black pigment during the oxidation process, but it can cause skin irritation and allergic reactions in some individuals, so it is regulated and should be used according to the instructions.

How often should this dye be applied, and does it contain any ingredients that are controversial or potentially irritating?

Nutrisse 1 Sort is intended for use as a permanent color and is typically reapplied every 4–6 weeks; it includes controversial ingredients such as ammonia, hydrogen peroxide, resorcinol, fragrance components and sodium metabisulfite, which may be irritating for sensitive users.

L'OREAL NORGE AS

Nutrisse 1 Sort

Beauty

Product Insights

Nutrisse 1 Sort is a permanent black hair dye that combines oxidative pigments such as titanium dioxide and synthetic colorants with conditioning agents like sunflower seed oil, avocado oil, rosemary extract, vitamin E and vitamin C to help moisturize and protect the hair during coloring. The formulation also contains typical hair‑coloring chemicals including ammonia, hydrogen peroxide, resorcinol and a fragrance blend, which can cause scalp irritation, allergic reactions or sensitisation in users with sensitive skin. While the product is labelled gluten‑free and includes antioxidant ingredients, it features numerous synthetic additives and a soy allergen, so consumers should perform a patch test before use.

Comparative Analysis

Targeting the high‑intensity black hair‑color market, Nutrisse 1 Sort differentiates itself by pairing traditional oxidative pigments with a rich blend of plant oils and antioxidant vitamins, positioning it as a conditioning permanent dye for consumers who want lasting dark shade without sacrificing hair nourishment.

Ingredients

1187710 FARVECREME / FÄRGCREME / VÄRIVOIDEAQUA / WATER , CETEARYL ALCOHOL , PROPYLENE GLYCOL , DECETH-3 , LAURETH-12 , OLETH-30 , AMMONIUM HYDROXIDE , LAURIC ACID , HEXADIMETHRINE CHLORIDE , TOLUENE-2,5-DIAMINE , GLYCOLDISTEARATE , RESORCINOL , POLYQUATERNIUM-22 , ETHANOLAMINE , SILICA DIMETHYL SILYLATE [NANO] /SILICA DIMETHYL SILYLATE , CI 77891 / TITANIUM DIOXIDE , 2,4-DIAMINOPHENOXYETHANOL HCl , m-AMINOPHENOL , ASCORBIC ACID , TOCOPHEROL , SODIUM METABISULFITE , THIOGLYCERIN , HELIANTHUSANNUUS SEED OIL / SUNFLOWER SEED OIL , DIMETHICONE , CARBOMER , ROSMARINUS OFFICINALIS (ROSEMARY)EXTRACT , EDTA , VITIS VINIFERA SEED OIL / GRAPE SEED OIL , PARFUM / FRAGRANCE(F.I.L. C212321/1).1190018 DEVELOPER: 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 CARING CONDITIONER: 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).

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