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Description
xMedik8 Oxy-R Peptides
A professional-strength brightening serum featuring an unprecedented 1% oxyresveratrol — one of the most powerful skin-brightening agents available. Clinically proven to visibly brighten, even skin tone, and fade dark spots in just 7 days on all skin tones.
1% Oxyresveratrol
Award Winner
All Skin Tones
Fragrance-Free
Medik8 Oxy-R Peptides is a next-generation brightening serum that delivers professional-strength results at home. Featuring a previously unattainable 1% concentration of oxyresveratrol — naturally derived from the mulberry family — this serum targets dark spots, discolouration, and uneven skin tone with clinically proven efficacy.
Unlike conventional brightening products, Oxy-R Peptides uses Medik8's patented click-activated stabilization system. The formula is suspended in a unique preservation serum and split across two bottles to ensure optimal potency and stability from the very first drop until the last.
Enhanced with a triple-threat peptide complex — including tetrapeptide-30 and acetyl glycyl beta-alanine — this serum not only brightens but also hydrates and smooths, leaving skin visibly more radiant, even, and youthful.
- Visibly brighter, more even skin in just 7 days
- Reduces the appearance of dark spots and post-imperfection marks
- Clinically proven effective on all skin tones, including deeper complexions
- Prevents the formation of new dark spots
- Hydrates and smooths for a silky, non-greasy finish
- Patented click-activated system ensures potency until the last drop
- Dermatologically tested, alcohol-free, and fragrance-free
Activation (First Use Only): Press down firmly on the bottle lid until it clicks. Shake vigorously for 30 seconds to mix. Recycle the lid and replace with the dropper provided.
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 fully before applying your moisturiser.
Important: Oxy-R Peptides is supplied as 2 x 10ml bottles. Each bottle stays potent for 6 weeks after activation. Activate the second bottle only after finishing the first. Store both bottles at room temperature and away from direct sunlight after activation.
Tip: If you are new to Oxy-R Peptides, we recommend a patch test at least 24 hours before first use.
Morning Routine
- Cleanse
- Tone
- Oxy-R Peptides
- Vitamin C Serum (optional)
- Moisturiser
- Broad-Spectrum SPF
Evening Routine
- Double Cleanse
- Tone
- Oxy-R Peptides
- Retinal / Vitamin A (optional)
- Moisturiser
Can I use Oxy-R Peptides with vitamin C or retinol?
Yes — Oxy-R Peptides layers beautifully with both vitamin C (AM) and retinol/retinal (PM). Always apply Oxy-R Peptides first, allow it to absorb, then follow with your next active and moisturiser. Daily SPF is essential when using brightening actives.
1% Oxyresveratrol (Oxy-R)
Naturally derived from the mulberry family, oxyresveratrol is one of the most powerful skin-brightening agents available in skincare. It helps prevent the formation of dark spots and transforms the look of dull, uneven skin tones — now available at a professional-strength 1% concentration.
Tetrapeptide-30
A four-amino-acid brightening peptide that inhibits tyrosinase (the enzyme responsible for melanin production) and blocks the transfer of melanin to the upper skin layers. Clinically proven to fade hyperpigmentation and even out skin tone across all ethnicities.
Acetyl Glycyl Beta-Alanine
A skin-brightening peptide that works to block melanin transport to the skin's surface, preventing the visible formation of dark spots and discolouration.
Gluconolactone (PHA)
A next-generation polyhydroxy acid that gently exfoliates the skin surface without irritation. It also moisturises, supports the skin barrier, and provides antioxidant protection — making it ideal even for sensitive skin.
Lactic Acid (AHA)
A gentle alpha hydroxy acid that exfoliates dead skin cells to reveal brighter, smoother skin beneath. It also acts as a humectant, drawing moisture into the skin for enhanced hydration.
Sodium Hyaluronate
The salt form of hyaluronic acid that binds up to 1,000 times its weight in water, delivering deep, lasting hydration and a visibly plumper complexion.
Glycerin
A skin-identical humectant and natural moisturising factor that draws water into the skin, keeping it hydrated, soft, and comfortable.
Aqua (Water), Butylene Glycol, Artocarpus Lakoocha Wood Extract, Hydroxyresveratrol, Gluconolactone, Acetyl Glycyl Beta-Alanine, Glycerin, Lactic Acid, Sodium Hyaluronate, Sodium Benzoate, Disodium EDTA, Tetrapeptide-30, Xanthan Gum, Sodium Metabisulfite, Calcium Gluconate.
What results can I expect?
In an independent consumer study, 96% agreed skin was left feeling smooth and 92% agreed the serum was gentle on skin. Clinically, visible brightening and a more even skin tone can be seen in as little as 7 days, with visible dark spot reduction in 1 month.
Is this suitable for darker skin tones?
Yes. Oxy-R Peptides has been clinically proven to be effective on all skin tones, including deeper skin tones (Fitzpatrick types 5–6) where visible dark spots can be a more prevalent concern.
Why are there two bottles?
Oxyresveratrol is a highly potent but delicate ingredient. Medik8's patented click-activated system suspends the formula in a preservation serum and splits it across two 10ml bottles. This ensures the serum remains stable and effective from activation until the very last drop. Each bottle stays potent for 6 weeks after opening.
Can I use this with vitamin C?
Yes. In the morning, apply Oxy-R Peptides after cleansing and toning, followed by your vitamin C serum, moisturiser, and SPF. The two brightening actives work synergistically for enhanced radiance.
Can I use this with retinol?
Yes. In the evening, apply Oxy-R Peptides first, allow it to absorb, then follow with your retinol or retinal serum and moisturiser. Always use SPF the following morning.
Is this pregnancy-safe?
Oxy-R Peptides does not contain retinoids. However, it does contain AHAs (lactic acid) and PHAs (gluconolactone). We recommend consulting your healthcare provider before use during pregnancy or breastfeeding.
Additional Information
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Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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