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Oxy-R Peptides

Medik8 Oxy-R Peptides Duo

%0 4.38 | 242 reviews
Box

£65.00 (£3.25 per ml)

Free UK delivery

In stock

If you like we can let you know when we have some more.

Product Description

Discover Medik8’s professional strength peptide serum, which brightens the look of dark spots and discolouration in just 7 days.*

Only available at Medik8 in a previously unattainable concentration of 1% oxyresveratrol, Oxy-R Peptides delivers clinically proven action on all skin tones for visibly brighter, more even-looking skin with fewer post-imperfection marks and dark spots.

Medik8’s unique and innovative click-activated stabilisation system ensures unmatched peptide potency for incredible visible results, from the first drop until the last.
*Proven via an Independent consumer study conducted over 4 weeks on 50 participants with discolouration skin concerns.

Key Benefits:
Professional Strength Power on Dark Spots (1% oxyresveratrol)
1 month to visible dark spot reduction.*
*Proven via an Independent consumer study conducted over 4 weeks on 50 participants / with dark spots skin concerns

Proven Efficacy On All Skin Tones
Proven to be effective on all skin tones, including deeper skin tones where visible dark spots can be a more prevalent concern.*
*Proven via independent clinical & consumer studies on Oxy-R Peptides conducted on all skin tones (33% of our panels were FP 5-6 skin types)

Effective Until The Last Drop
The formula is suspended in a unique preservation serum and split across 2 click-activated bottles to ensure maximum stability and power from the moment it is activated, until the final drop.

Hydration Booster
This gentle hydrating serum boasts a silky, non-greasy finish and absorbs instantly.
96% agree skin is left feeling smooth*
92% agree Oxy-R Peptides is gentle on skin*
*Proven via an Independent consumer study conducted over 4 weeks on 50 participants / with dark spots skin concerns

Proven Results:
7 days to visibly brighter more even skin*
1 month to visible dark spot reduction*
96% agree skin is left feeling smooth*
92% agree Oxy-R Peptides is gentle on skin*
*Proven via an Independent consumer study conducted over 4 weeks on 50 participants / with dark spots skin concerns.

Key Ingredients:
1% Oxyresveratrol (Oxy-R)
One of the most powerful skin-brightening agents available in skincare, oxyresveratrol is naturally derived from the mulberry family. It helps to block the action of tyrosinase, an enzyme that is responsible for forming pigment in the skin. As a result, it transforms the appearance of uneven, dull skin tones.

Tetrapeptide-30
This illuminating peptide helps to minimise tyrosinase production and blocks the overproduction of melanin that causes visible dark spots.

Acetyl Glycyl Beta-Alanine
A brightening peptide solution that works by helping to block the transport of melanin to the skin cell. Therefore, helping to prevent visible pigment on the skin.

Hyaluronic Acid
An incredibly hydrating ingredient, hyaluronic acid attracts and retains more than 1,000 times its own weight in water and draws moisture in the upper layers of the skin; leaving it looking visibly supple and deeply hydrated.

Good to Know:
CLINICALLY PROVEN FORMULA
DERMATOLOGICALLY TESTED
FRAGRANCE FREE
NO SYNTHETIC COLOURS
PARABEN FREE

Directions

STEP 1
To activate for first use, press down firmly on the bottle lid until it clicks and shake for 30 seconds. Recycle the lid and replace with the dropper.

STEP 2
After cleansing in the morning and evening, blend 6 drops of Oxy-R Peptides across the face, neck and décolletage - avoiding the eye area. Leave to absorb before applying your moisturiser.

NOTE
Oxy-R Peptides is provided in 2x10mL bottles. Each bottle will stay potent for 6 weeks after opening. Activate the second bottle after finishing the first bottle. Store both bottles at room temperature and away from windows after activation.

How to Layer Oxy-R Peptides
AM: Apply Oxy-R Peptides after cleansing and toning. Follow with your vitamin C serum and finally, sunscreen.
PM: Apply Oxy-R Peptides after cleansing. Follow with Crystal Retinal and finally, moisturiser.

More information

CLINICALLY PROVEN FORMULA
DERMATOLOGICALLY TESTED
FRAGRANCE FREE
NO SYNTHETIC COLOURS
PARABEN FREE
See more...

Rated 5 out of 5 by from Glowy skin! [This review was collected as part of a promotion.] Leaves my skin so glowy and really helps with colour correcting!
Date published: 2026-05-14
Rated 5 out of 5 by from Slow, steady improvement [This review was collected as part of a promotion.] Decided to try this as all my pigmentation returned within 6 weeks of finishing 4 sessions of Lumecca IPL 🫤 & I was reluctant to spend more on the treatments . . .
Date published: 2026-05-14
Rated 5 out of 5 by from Amazing product with great results!! [This review was collected as part of a promotion.] There is improvement in my skin hyperpigmentation and a lightening of the dark spots. My skin looks brighter and more even. There is improvement in my skin texture as well. I am on my second purchase of this product and am eager to see how much more my skin improves
Date published: 2026-05-13
Rated 5 out of 5 by from Good brightening serum with elegant formula, but not revolutionary [This review was collected as part of a promotion.] Really nice lightweight serum that layers well into a routine and gives the skin a smoother, brighter and more even appearance over time. The texture feels refined and non-sticky, and it works especially well alongside retinal and hydration-focused products. The oxyresveratrol and peptide combination is interesting for pigmentation support and antioxidant protection, particularly if your goal is gradual brightening rather than aggressive exfoliation. Skin looked calmer and more radiant with consistent use. That said, despite the “high-strength” and peptide-focused marketing, this is still essentially a premium brightening serum rather than a transformative treatment. Results are subtle and cumulative rather than dramatic, especially for deeper pigmentation. Overall, a well-formulated luxury serum for maintaining brightness, supporting skin quality and complementing a more advanced routine.
Date published: 2026-05-11
Rated 4 out of 5 by from Overall brighter skin [This review was collected as part of a promotion.] I have been using this product for about a month , together with the vitamin C , the sunscreen and the crystal retinal as advised . It is hard to tell which product had the most effect - I bought this product mainly for some increased pigmentation on my forehead . This had resurfaced after increased sun exposure last year . So far , I cannot see a major difference regarding the hyperpigmentation on my forehead . Overall , the skin does look brighter and more radiant though so I am happy to continue using this product and see what happens .
Date published: 2026-05-07
Rated 1 out of 5 by from Ruined skin barrier. [This review was collected as part of a promotion.] This ruined my skin. I had to stop. Regret purchasing it. I wiish i could return for a refund.
Date published: 2026-05-01
Rated 5 out of 5 by from Oxy-R peptides [This review was collected as part of a promotion.] I purchased this to help even my skin tone and reduce pigmentation . I am a week into my second bottle and after using it twice daily have not seen any improvement . My skin does feel hydrated and no irritation . I will be returning to my vitamin c serum from the medika8 range .
Date published: 2026-03-08
Rated 4 out of 5 by from Yet to see results, too soon! [This review was collected as part of a promotion.] I am consistently using this serum. Love the way it sits on my skin. A little goes a long way too. Too soon to tell results yet.
Date published: 2026-03-07
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