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Description
Product code: 915842
Built around a lightweight gel-serum texture, the 111SKIN Y Theorem Repair Light sinks quickly into your skin. It's a more fluid version of the brand's original Y Theorem Repair Serum. It won't leave a sticky or greasy residue, so your skin feels clean afterwards.
Product Highlights
- Proprietary complex of Glutathione, Vitamin C and Escin to reinforce your skin barrier
- Formula first developed by Dr Yannis Alexandrides for post-surgical skin healing
- 92% of 6-week clinical trial participants agreed it visibly reduces fine lines
- Suitable for vegans
- Contains no SPF
- Contains Isopropyl Myristate; use with caution on acne-prone skin
Best For
- Oily and combination skin that needs repair without heaviness
- Morning routines where your serum has to sit cleanly under makeup
- Skin recovering after cosmetic procedures or environmental stress
- Anyone targeting fine lines with a twice-daily, day-and-night routine
Delivery & Returns
Next Day Delivery by DPD
Order by 9pm (excludes Public holidays)
Express Delivery - 48 Hours
Order by 9pm (excludes Public holidays)
Standard Delivery
Delivered within 3 - 7 days (excludes Public holidays).
Collect In Store
Delivered to your chosen store within 3-7 days
Collect In Store Voucher
Choose collect in store and spend over £400 (excluding delivery charge) to get a £20 voucher to spend in store.
Christmas Gift Returns
- Our extended Christmas returns policy runs from 26th October 2026 until 4th January 2027. All items purchased online during this time can be returned for a full refund.
- View our full Christmas Gift Returns Policy
Returns and Exchanges
- You can now return your online order in a few easy steps. Select your preferred tracked returns service. We have print at home, paperless and collection options available.
- You have 28 days to return your order from the date it’s delivered. Exclusions apply.
- If you've had items delivered to you from one of our brand partners please see additional information in regards to returning those items on our Online Returns Page.
- Please note: Unfortunately certain items cannot be returned. For more information please visit our Returns and Exchanges Policy.