The Protective Duo

Rated 4.7 out of 5
Based on 65 reviews
$370
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Only 11 pieces in stock!

Shielding and treating the skin, the Protective Duo utilises our signature ingredient, NAC Y2, to protect and repair stressed skin. The Y Theorem Serum was designed and bottled as a result of witnessing significant healing responses post-surgery. Boosting collagen production, supporting cell regeneration and improving elasticity in the skin, the serum is ideal for those whose skin have faced any element of trauma or exposure. Complimented with the NAC Y2 Pollution Defence Booster, this complexion defence protects the skin from physical and blue light damage by combining a powerful complex of peptides and antioxidants. Together this fortifying duo helps to maintain a healthy complexion away from free radicals, inflammation and a weakened skin surface.

 

1 x NAC Y2 Pollution Defence Booster - 20ml

1 x Y Theorem Repair Serum - 30ml


 

Apply 2-3 pumps of the Y Theorem Serum, mixed with 2-3 drops of the NAC Y2 Pollution Defence Booster before pressing into the skin.

 

 

average rating 4.7 out of 5
Based on 65 reviews
  • 5 Stars
    56 Reviews
  • 4 Stars
    5 Reviews
  • 3 Stars
    1 Review
  • 2 Stars
    1 Review
  • 1 Star
    2 Reviews
94% of reviewers would recommend this product to a friend
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65 Reviews
Reviewed by Phuong N.
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5

Is it worth it?

Yes. I was shocked. It’s the only thing I ever tried that made a visible difference the first time I sampled it. In other words, yes it works.

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Reviewed by D G.
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5

Y Serum

Since its inception, Y Serum has been and continues to be the number one product in my skin care regimen, I absolutely love it! I have great skin thanks to 111 Skin❤️

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Reviewed by Deborah, from United Kingdom
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5
Skin Type
Normal
Age
over 55 y.o
Skin Concerns
  • Ageing

This is the best ever serum

I think this is the best serum I’ve ever tried. It’s rich and effective, highly improving the texture of my skin. The only downside is that it is so expensive.

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Reviewed by Hazel L., from United Kingdom
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5
Skin Type
Ageing
Age
over 55 y.o
Skin Concerns
  • Dryness
  • Ageing
  • Sensitivity

My favourite 111skin serum!

This serum definitely helps to calm my sensitive skin. I use it alongside the Y Theorem Day & Night creams.

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Reviewed by Shanna P.
Verified Buyer
Review posted
I recommend this product
Rated 5 out of 5

This product is amazing!

I love everything in this line!

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