Most L’Oreal at‑home permanent color kits list a 25‑minute development/processing time for full application.

Product details consistently state the kits are suitable for all hair types.

Kits are offered in two main formats: a crème (cream) formula and a liquid/gel formula — both described as permanent at‑home color systems.

Kits commonly include gloves plus an after‑color routine such as a caring shampoo and deep conditioner or a color‑protective conditioner paired with a shine serum.

Descriptions highlight hyaluronic acid for protection and moisture, and list oils/vitamins plus a UV filter for shine and color protection — specifically Camelina (Golden) oil, antioxidant Vitamin E, and a UV filter.

Descriptions state fade‑defying color and protection lasting up to 8 weeks.