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Blue Copper 5 PRIME Sleep Tight Mask is an overnight copper-peptide treatment with a volumising peptide, for dry, thinning skin that looks flat and tired on waking. It works overnight to leave skin looking plumper and more rested.
A rich overnight layer designed to be slept in — rinse in the morning if you prefer.
Key benefits
Wakes skin up plumper and rested
Adifyline® is carried at its clinically studied dose, chosen for the look of cheek volume and a rested, cushioned surface on waking.
Deep overnight hydration
Sodium hyaluronate and humectants hold water through the night for a smoother morning surface.
A comfortable occlusive seal
A dimethicone-rich base helps lock moisture in overnight, part of the plumped, rested look by morning.
Copper-peptide care while you sleep
Contains Osmotics' Blue Copper peptide, worked into an overnight treatment format.
Proven results
woke to plumper, more rested skin
said their skin felt deeply hydrated
saw a smoother surface
said their skin looked revived
Photography of an individual user following nightly use for 4 weeks. Individual results vary.
*Consumer perception study. Individual results vary. Ingredient-level evidence reflects the supplier's clinical study on the branded active, carried in this formula at its clinically studied dose. See the full evidence on our clinical results page.
How to use
- Apply an even layer as the last step at night
- Leave on overnight
- Rinse in the morning if you prefer
Loved & recommended
Overnight masks work partly through occlusion, and I like that this one is honest about that while also carrying a real active — Adifyline at its clinically studied dose, chosen for the look of cheek volume. You wake up plumped partly because moisture has been sealed in overnight and partly because of the peptide. It is a treatment step, not an everyday moisturiser.
Elena HartDermatologist
Why it is recommended
It uses Adifyline at its clinically studied dose in an overnight format, and is honest that part of the effect is occlusive hydration.
Key ingredients
Adifyline® (acetyl hexapeptide-38)
Carried at its clinically studied dose, matching the supplier study which measured an increase in cheek volume over 14 days.
Copper peptide (bis-tripeptide-1 copper)
The genuine Blue Copper peptide, present in the overnight formula.
Sodium hyaluronate + humectants
Hold water in the skin overnight for a plumper morning surface.
Dimethicone base
An occlusive layer that helps seal in moisture as you sleep — part of the effect is this comfortable overnight seal.
Always refer to the packaging for the full INCI list.
The science behind the formula
In its supplier study, a cream containing Adifyline at its studied dose applied twice daily increased measured cheek volume by around 12% over 14 days. The Sleep Tight Mask carries Adifyline at that same clinically studied dose in an overnight format.
Part of the plumped, rested look on waking is the mask's occlusive base sealing water into the skin overnight — a genuine part of how an overnight mask works, alongside the peptide.
Read the full evidence on our clinical results page.
FAQs
How often should I use it?
Two to three nights a week, as the last step of your evening routine. You can rinse it off in the morning if you prefer.
Do I use my other products underneath?
Yes. Apply your serum first, then seal with the mask as your final overnight step.
Is it heavy or sticky?
It is a rich overnight layer designed to be slept in. It absorbs as you sleep and can be rinsed in the morning.
Can I use it every night?
You can, but two to three times a week is usually enough. Listen to your skin.
Will it transfer onto my pillow?
It is designed to absorb overnight, but as with any rich overnight mask an older or silk pillowcase is sensible for the first few uses.
Do I still need a moisturiser?
The mask is your final overnight step on the nights you use it. On other nights, use your usual moisturiser.
How long until I see a change?
You should wake to a plumper, more rested surface in the short term, with the fuller look building over a few weeks of regular use. See our clinical results page.
Is it suitable for sensitive skin?
It is formulated for all skin types. Patch test first if your skin is reactive.
Is it safe to use during pregnancy?
If you are pregnant or breastfeeding, we recommend checking with your doctor before starting any new active skincare.
How is it shipped, and can I return it?
Shipping is free on every order with no minimum, and there is a 30-day, no-questions-asked return guarantee if it is not right for you.
Blue Copper 5 Prime Sleep Tight Mask
Overnight copper-peptide mask with volumising peptides — for dry, thinning skin that looks flat and tired on waking Full details
Suitable for
- Dry, thinning skin
- Skin that looks flat and tired on waking
- Overnight use, 2-3 times a week
How to use
- Apply an even layer as the last step at night
- Leave on overnight
- Rinse in the morning if you prefer
Guide to layering
Since 1998
Pioneers of copper-peptide skincare
Clinically studied
Formulated at studied ingredient doses
Free shipping
On all orders, no minimum
30-day guarantee
No-questions-asked returns
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|---|---|---|---|---|
| Suitable for | Skin that has lost its bounce and tone | Thinning, fragile skin | Heavy, hooded lids | Stubborn dark circles and puffiness |
| Texture | Rich cream | Rich cream | Light eye cream | Fluid eye serum |
| Benefits | FirmRejuvenateSmooth | RejuvenateFirmHydrate | LiftDepuffBrighten | DepuffBrightenSmooth |
| Key ingredients | Matrixyl 3000 (palmitoyl peptides)Copper peptideHyaluronic acid | Matrixyl 3000 (palmitoyl peptides)Menofit (artichoke-leaf peptides)Uplevity (acetyl tetrapeptide-2)Copper peptide | Matrixyl 3000 (palmitoyl peptides)Uplevity (acetyl tetrapeptide-2)Copper peptideHyaluronic acid | Eyeseryl (acetyl tetrapeptide-5)HaloxylCopper peptideHyaluronic acid |
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