Any skincare aficionado can attest to the power of adding a new rich moisturizer or anti-aging retinol to shake up your mid-winter beauty routine. If your skin is feeling a little parched and pasty, why not take a tip from Rosie Huntington-Whiteley and Hailey Bieber to get your glow back?

Both stars incorporate Medik8’s r-Retinoate into their skincare regimens, and the brand just kicked off its Friends & Family Sale. You can score 25% off brand bestsellers, but don’t snooze; the offer ends Feb. 23.

Huntington-Whiteley and Bieber aren’t alone in using the brand to maintain their gorgeous, glowy skin. Celebrity facialist Melanie Grant — whose clients include Victoria Beckham, Jennifer Aniston and Nicole Kidman — also uses Medik8 on the famous faces she treats.

The brand also offers lightweight serums like the bestselling Liquid Peptides, which reduces the appearance of expression lines and deep-set wrinkles.

Huntington-Whiteley told Harper’s Bazaar she doesn’t “use a traditional moisturizer in my routine,” instead choosing to load up on active serums, including r-Retinoate.

Medik8’s vitamin A serum is said to be gentle yet more powerful than retinol for improving skin tone, texture and radiance. The formula includes a photo-stable form of the antioxidant, which can uniquely be used during the day under sunscreen.

According to the brand, Crystal Retinal is the UK’s No. 1 dermatological face serum. It’s offered in mild-to-extra-strong formula levels to allow your skin time to acclimate and work your way up.

One shopper calls it, “Brilliant for sensitive perimenopausal skin.”

“After experiencing a dramatic change in my skin as I hit perimenopause, I completely changed my regimen to include Medik8 products after seeing such good reviews and they do not disappoint!”

Medik8’s vitamin C serum, C-Tetra Luxe, is your daytime gateway to brighter skin. It promises visible results within a week and also tackles stubborn wrinkles.

With a near-five-star rating, it boats a lightweight, velvety formula users love. One devotee wrote, “My skin’s texture has really improved with this. Not only is it moisturizing, it has helped even out my skin tone. I have used many C serums in the past, but the hunt is over. This is amazing!”

Once you’ve picked your serums based on your skin goals, you’ll want a comforting, rich cream to sandwich the active ingredients and keep skin comfortably hydrated.

Enter Medik8’s signature nighttime cream, Advanced Night Ceramide, which also plumps, firms and nourishes skin.

Doubling up on the anti-aging ingredients, this evening cream has fans raving; “Advanced Night Ceramide is a game-changer for anyone looking to deeply nourish and restore their skin overnight,” one person wrote.