Is the Color & Care Base Coat suitable for sensitive or brittle nails?

The base coat contains strong solvents and a UV filter that can be drying, but it also includes biotin and hydrolyzed keratin which help reinforce the nail plate; most users with normal nail health tolerate it well, while those with extreme sensitivity should perform a patch test before full application.

What role does biotin play in this nail base coat?

Biotin is a B‑vitamin known to support keratin production; in the base coat it acts as a nail‑strengthening agent, helping to reduce splitting and improve overall nail resilience during wear.

How often should the base coat be applied and does it contain any controversial chemicals?

Apply a single thin layer before each polish application and reapply after any removal; the product includes common nail‑cosmetic chemicals such as butyl/ethyl acetate, phenoxyethanol and benzophenone‑1, which are approved for cosmetic use but may raise concerns for users avoiding certain solvents or UV filters.

Delia Cosmetics

Color &Care Base Coat

Makeup

Product Insights

Color & Care Base Coat is a nail‑care product formulated with fast‑drying solvents such as butyl acetate and ethyl acetate, a film‑forming nitrocellulose matrix, and a blend of pigments including mica and titanium dioxide. The formula also incorporates nail‑strengthening additives like biotin, hydrolyzed keratin and tocopherol, which aim to improve durability and flexibility of the nail plate. However, the high solvent content and preservatives such as phenoxyethanol and benzophenone‑1 may cause dryness or irritation for very sensitive users, so a patch test is advisable.

Comparative Analysis

Positioned as a professional‑grade nail base coat, it blends rapid‑drying solvents with nitrocellulose and nail‑strengthening ingredients such as biotin and hydrolyzed keratin to create a lasting, glossy foundation for colored polish.

Ingredients

Butyl Acetate, Ethyl Acetate, Nitrocellulose, Adipic Acid/Neopentyl Glycol/Trimellitic Anhydride Copolymer, Acetyl Tributyl Citrate, Isopropyl Alcohol, Stearalkonium Bentonite, Mica, Silica, Calcium Aluminum Borosilicate, Calcium Sodium Borosilicate, Tin Oxide, Alumina, Acrylates Copolymer, N-Butyl Alcohol, Benzophenone-1, Disodium Phosphate, Citric Acid, Triticum Vulgare Germ Oil, Olus Oil, Tocopherol, Urea, Biotin, Laurdimonium Hydroxypropyl Hydrolyzed Keratin, Phenoxyethanol, Helianthus Annuus Seed Oil, Zea Mays Oil, Sesamum Indicum Seed Oil, Macadamia Integrifolia Seed Oil, Olea Europaea Fruit Oil, TBHQ, Propylene Glycol, Equisetum Arvense Extract, Titanium Dioxide, Dimethicone, Aqua, Diacetone Alcohol, Synthetic Fluorphlogopite, Phosphoric Acid, Kaolin, [+/- CI 19140, CI 77891, CI 15880, CI 77510, CI 15850, CI 77499, CI 77491, CI 42090, CI 77742, CI 77492, CI 77163, CI 77000, CI 12085, CI 16035, CI 77266(nano)]

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