20X more powerful. Zero irritation. Featuring patent-pending R-IQTM technology.

 Winner of Cosmopolitan’s 2023 Holy Grail Beauty Awards, Retinal For All Renewing Serum is the new retinal gold standard. Reduce fine lines up to 50% in just 4 weeks1,2 and improve skin texture by 62%1—with 0% irritation3 and no prescription. You’ve never seen a retinoid do this before. 
 
Retinal For All Renewing Serum, featuring patent-pending R-IQTM technology, is powered by a potent dose of 0.1% retinal, the most powerful non-prescription retinoid available5, and ectoin — a revolutionary extremolyte that stops retinoid-induced inflammation before it starts6. 
 
Stabilized retinal works to smooth, lift, firm and brighten 11X faster than traditional retinol treatments7, while ectoin—a revolutionary anti-inflammatory molecule—reduces irritant-inducing IL-4R skin cell receptors by 82.6%6 resulting in 0% irritation3. Plus, with prolonged use, Retinal For All Renewing Serum actually improves the skin barrier by 67%4. 

Say goodbye to flakiness, redness, and irritation—say hello to bouncy, bright skin. It turns out you can have it all with this serum.

The clinical results are in1,2,3,4: 

50% reduction in fine lines and wrinkles 
50% improvement in brightness 
62% improvement in skin texture 
67% improved skin barrier 
0% irritation

Why you'll love this retinal serum: 

Dermatologist approved 
Clinically proven 
Safe for sensitive skin 
Kind to skin 
Clean 
Fragrance Free 
Vegan

Footnotes: 
 
(1) Measured by Corneometer, Tewameter, TEWL, Cutometer, Visia Scan instrumentation based on a 4-week and 12-week independent clinical study conducted by expert clinical graders. 
 
(2) Percentages reflect a range of results and may indicate maximum benefits achieved. 
 
(3) “Zero irritation” claim refers to a near 0% water loss to skin, post formulation application, as measured in a 4-week independent clinical study using a Tewameter, indicating virtually no skin-barrier disruption. 

(4) “Improved skin barrier” claim refers to a 67.62% improvement of the skin barrier, as measured in a 12-week independent clinical study using a Tewameter, indicating 67.62% less transepidermal water loss (TEWL).   
 
(5) S. Mukherjee, A. Date et al., Clin Interv Aging. 2006 Dec; 1(4):327 348.doi: 10.2147/ciia.2006.1.4.327 
 
(6) Novel research by Kang S, Kim K, Jun SH, et al. Anti-Irritant Strategy against Retinal Based on the Genetic Analysis of Korean Population: A Genetically Guided Top-Down Approach. Pharmaceutics. 2021 Dec; 13(12): 2006. DOI: 10.3390/pharmaceutics13122006 
 
(7) G. Siegenthaler et al., Retinol and retinal metabolism, Biochemical Journal, 1990, 268,pp 371 378 

Best of K-Beauty Awards 2022 are HERE!