Nubia library
Skincare articles you can come back to
Browse the Nubia library for clear guidance on products, routines and choosing ingredients
How long does acne treatment take to work? A week-by-week look
6 to 8 weeks for fewer breakouts, 3 to 4 months to clear. Why acne treatment is slow, how long each option takes, and how to know it’s working.
Retinol vs retinal vs adapalene: which one should you use?
Six names, one family: how strong each retinoid is, how likely it is to irritate, and which ones you can buy without a prescription