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Nail Colour Base Coat Zero 4/0

4/0 - Greyish Blue

The Colour Base Coat series by UKA is a revolution in nail care: a nail serum, base coat and nail polish all in one.

Infused with their unique “better nail serum”, this will give you a luxurious manicure safe in the knowledge that the serum is keeping your nails healthy.

Apply one coat to use as a base coat for any of your favourite polishes, or layer up to create the beautiful shade you see on the bottle.

Apply one coat, and it's a base coat. Apply four coats, and it colours like a nail polish.

You can combine several shades of base coats to make a colour that best matches your skin tone.

Usage Features:

  1. Surprisingly quick drying
  2. Glossy and easy to apply evenly
  3. Brings out the colour of subsequent coats of polish and makes it last longer
  4. Does not lead to pigmentation
*Make sure to clean the dirt, moisture, or sebum from the surface of your nails with removers, before use.

Beauty Ingredients: Tea Tree Oil, Vitamin E, Arginine, Hydrolyzed Keratin, Hydrolyzed Silk, Olive Bud Extract, Horsetail Extract, Ergothioneine, Vitamin C

Other Ingredients: Butyl acetate, ethyl acetate, nitrocellulose, acetyl tributyl citrate, (phthalic anhydride / trimellitic anhydride / glycols) copolymer, isopropanol, stearalconium hectorite, (adipic acid / fumaric acid / phthalic acid / tricyclodecanediyl Methanol Copolymer, (Acrylate / Tris (trimethylsiloxy methacrylate) silylpropyl methacrylate) Copolymer, Di (C12-15) palacea-2-phosphate, Synthetic Phlogopite, Citric Acid, Water, PG, Ascorbyl Tetrahexyl Decanoate, Cetyl Palmitate , Ethanol, BG, glycerin, tocopherol acetate, hydrolyzed keratin, polysorbate 80, tri (caprylic / capric acid) glyceryl, sorbitan stearate, dimethicone, cyclomethicone, alkyl acrylate copolymer, benzoic acid Na, lecithin, tea tree leaf oil, arginine, olive bud extract, hydrolyzed silk, horsetail leaf extract, ergothioneine, titanium oxide, mica, iron oxide, silica, 4 yellow, red 202, red 201, acid Ba, iron blue

* It is said that the effects are sustained through the combined use of ergothioneine and vitamin C.

Recommended for people who; 
  • Want a luxury manicure without damaging their nails
  • Want to choose a colour which shows the beauty of the whole hands
  • Want to treat/prevent weak nails (separation, vertical ridges, dryness, cloudiness)
  • Want to apply colour but are concerned about nail health
  • Find polish application difficult

"Better Nail" Features

  • Formulated with uka better nail serum to maintain healthy nails
  • Contains an ingredient with oxygen permeability, which gives a light, comfortable feeling without tightening or burdening the nails, making it stress free
  • Dibutyl phthalate-free, formaldehyde-free, toluene-free


    1. Standard (2-4 Business days): £2.95 | FREE on orders over £50
    2. Tracked/Signed For (2-3 Business days): £3.95 | FREE on orders over £100
    3. Express (1-2 Business days): £4.95

    EU & International

    Europe and International deliveries are sent via tracked shipping, and are free of charge on orders over £200. 

    For more information and pricing see the shipping information page here.


    It’s okay if you change your mind, we offer a free 30-day returns guarantee within the UK, and on specific items in the EU. For more information see the full returns policy here.

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