For 5 years I have suffered with the worst rosacea - in my 40s. With short hair there was no hiding, my skin not only looked absolutely horrific but the pain was agonising - I spent 3 years back and forth at doctors and hospitals with absolutely no results apart from a cream which not only burned my skin but made it 10 times worse. I had never ever felt so low in my life. No exaggeration. After a lot of self research I found this - and within 3 weeks my life changed again, my skin started to clear, no more agonising red lumps, itching or burning and the redness started to clear. 6 months on my skin is continuing to improve. I cant change the damage done, but now I have normal skin with a light covering of Make up. Dont Panic at the cost, this is worth every penny and more besides - using it just once a day, one pump, it lasts months - serious value for money - And trust me, I spent about 1000 on various lotions, potions, heartache and make up to try before this miracle product. Life changing for me, I can face the world now. Thank you 111 skin.

Very light, is great for oily skin. Will buy again!

I have very sensitive skin that gets oily easily. The Y Theorem Repair Light Serum is my favorite serum and it's a important part of my daily routine. It absorbs very quickly and hydrates the skin very well. And there is absolutely no skin irritation.

Amazing product and such a great texture, didn't feel greasy at all!

This serum works wonder to my combination - oily skin it’s light weight, easy to absorb, and does not clog my pores, and it really helps reducing my acne scars after I get an extraction. I do spectra laser once a month and this serum helps soothing my redness as well! I’m on my fourth bottle already! Can’t live without it!!