10% L-ascorbic acid (Vitamin C) delivers powerful antioxidant protection to combat environmental stressors and support skin radiance
Polyamine growth factors enhance skin volume, firmness, and elasticity for a lifted, smoother appearance
Multi-functional formula targets wrinkles, thinning, and signs of aging for visibly youthful skin
Clinically tested and dermatologist-recommended for safe, effective results on all skin types, including mature skin
Vegan, cruelty-free, and hypoallergenic for sensitive and ingredient-conscious users
Summarized by Shop
Our groundbreaking multi-functional growth factor serum formulated with 10% L-Ascorbic Acid USP + Polyamine-DAB® to restore volume, density, firmness, and elasticity for visibly lifted, smoother, younger-looking skin. Ideal for all skin types, especially mature.
Active Ingredient
10% L-ascorbic acid (Vitamin C)
Additional Ingredients
Polyamine growth factors, other vitamins and minerals
Product Form
Serum
Dispenser Type
Bottle
Suitable for Skin Type
All skin types, including mature and sensitive
Target Areas
Face, neck
Summarized by Shop
4.8
70 ratings
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Best eye cream
I have been using the GrenzCine Serum around my eyes for about 6 weeks. I had no puffiness from this serum and I think the serum is improving the texture of my undereyes. It doesn't take away all my wrinkles. No cream or serum does that. However this cream seems to help. It is also great under makeup and I see less creasing from my concealer when using this serum. I hope it lasts a long time because if is pricey.
D
Debbie · 20 days ago
Beast serum
I’ve been using this serum consistently, and I’m very happy with the results. It makes my skin look brighter, smoother, and healthier without causing any irritation. It absorbs quickly and feels lightweight. Definitely one of the best Vitamin C serums I’ve tried. Highly recommend!
M
Maryam · June 29, 2026
Wow
Love all your products. Very visible difference in plumpness of skin