111Skin
Y Theorem Repair Serum Light NAC Y2
Regenerating serum with NAC Y²™, Aloe Vera and Calendula extract, moisturizing, balancing, soothing and protective.
The inspiration for 111SKIN, Dr. Yannis originally developed a super serum to aid post-surgical scar healing. Word spread quickly about this powerful formula and its incredible ability to fade discoloration, visibly reduce wrinkles, repair stressed skin, protect against sun damage and environmental aggressors.
Only a small amount of this lighter version of the serum is needed to enjoy the effect. You can expect rejuvenated, nourished, plump skin and it will come to the rescue if your skin’s been exposed to extreme conditions such as the ski slope or safari sun.
The perfect repair serum for oilier skin types and humid environments, the Y Theorem Repair Light Serum NAC Y²™ will thoroughly and reliably rescue your skin and bring it back to life.
- Repairs, regenerates and protects
- Science-backed healing
- Tested in space - one of the most extreme environments which causes skin to age more rapidly
After cleansing, distribute 1-2 pumps between your fingertips and apply to your face and neck in an upward motion.
If used as part of a 111SKIN regimen, follow with 111SKIN Y Theorem Day Cream NAC Y² or Y Theorem Day Cream Light NAC Y².
Our Clean Beauty concept is primarily defined by the ingredients you won't find in the products with the CLEAN icon:
BHA (butylated hydroxyanisole), BHT (butylated hydroxytoluene), chemical sunscreens, EDTA, ethanolamines, ethoxylated ingredients (Ceteareth-20, emulsifying wax, PEGS, polysorbate-20, polysorbate-40, steareth-20, sulfates), formaldehyde, methylchloroisothiazolinone and methylisothiazolinone, methylcellulose or 2-methoxyethanol, nitro- and polycyclic musk, parabens, petrolatum and paraffin, phthalates, resorcinol, silicones, animal by-products (with the exception of lanolin and beeswax), toluene, triclosan and triclocarban.
With this icon you can see at a glance which products meet the standard of our CLEAN Guide.
Read more in the STUDIO about THE NICHE CLEAN GUIDE!

Dispose of contents/container in accordance with local/regional/national/international regulations.
Warning: Harmful if swallowed.; Warning: May cause an allergic skin reaction.; Protect from sunlight.