Sunless solution calculator

Your exact DHA mix,
calculated in seconds.

Upload a reference photo. Solvici Shade Lab colour-corrects the lighting, measures tone and depth, then calculates a suggested solution — DHA percentage, base undertone, mix ratio and rinse time — with a shade preview.

Shade Lab is a colour-matching and formulation tool for cosmetic sunless tanning products, sold as a software subscription. It is not a skin assessment and gives no medical or dermatological advice.