111SKIN Y Theorem Repair Light Serum NAC Y2

Serums & Treatments • Serum • 1.0 fl oz / 30 ml
Regular price $350
30% OFF with code OCTFEST30 View Details
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Product Benefits
  • Helps reduce the appearance of redness and irritation for a calmer, more balanced complexion
  • Supports healthier-looking skin by helping improve overall tone, texture, and radiance
  • Improves skin smoothness and softness while maintaining optimal hydration levels
Expert Review
Leaves skin feeling hydrated, balanced, smoother, and visibly healthier-looking over time.

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111SKIN Y Theorem Repair Light Serum NAC Y2 is a lightweight yet powerful treatment serum designed to support skin repair, strengthen the skin barrier, and improve overall skin health. Powered by 111SKIN’s proprietary NAC Y2 technology, this advanced formula helps combat the visible effects of environmental stressors, reduce the appearance of redness, and promote a calmer, more balanced complexion. The fast-absorbing serum delivers essential hydration while helping improve skin resilience, texture, and radiance without feeling heavy on the skin. Ideal for normal, combination, and oily skin types, it leaves the complexion looking smoother, healthier, refreshed, and visibly revitalized with continued use.

Oily Skin
Combination Skin
Mature Skin
SENSITIVE SKIN
Normal Skin

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  • 5 stars: 12 (75%)
  • 4 stars: 3 (19%)
  • 3 stars: 1 (6%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
K
Kaliyah

This serum has become one of my favorite skincare products. It feels lightweight on the skin while providing noticeable hydration and comfort.

J
Jenny

My complexion looks much more refreshed since I started using this consistently. It absorbs quickly and works beautifully under moisturizer.

C
Clare

I love how silky the texture feels. It glides onto the skin effortlessly and leaves my face feeling smooth and nourished.

D
Destiny

The formula is lightweight but surprisingly hydrating. My skin feels balanced and comfortable throughout the day.

K
Kenzie

Whenever my skin feels stressed or dehydrated, this serum helps restore a healthier, more refreshed appearance.

A
Averi

I've noticed an improvement in the overall texture of my skin. It feels softer, smoother, and more resilient with continued use.

S
Siena

The formula feels elegant and absorbs beautifully. It leaves my skin feeling hydrated without any greasy residue.

C
Cassidy

My skin tends to look dull during busy weeks, and this serum helps bring back a healthy-looking glow. It leaves my complexion looking revitalized.

E
Emma

The lightweight consistency makes it easy to use both morning and evening. My skin always feels comfortable after application.

K
Karlie

I've incorporated this into my daily routine and have been very pleased with the results. My skin feels healthier and looks more radiant overall.

R
Riley

One of the first things I noticed was how smooth my skin felt. It provides hydration while helping my complexion look more balanced.

M
Micaela

This layers perfectly with the rest of my skincare routine. It absorbs quickly and never feels sticky or heavy.

V
Valery

This serum helps my skin maintain a fresh, well-rested appearance. It's become a reliable part of my skincare regimen.

L
Leia

I appreciate how comfortable my skin feels after using this. It provides lightweight nourishment while supporting a smooth complexion.

A
Addison

A wonderful everyday serum that delivers lightweight hydration, improves skin comfort, and leaves the complexion looking smoother, healthier, and beautifully refreshed.

S
Sloane

My skin looks noticeably more hydrated and refreshed since adding this serum. It works well with every other product in my routine.

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