Medik8 Sleep Glycolic - 30ml

Does your skin look dull and uneven in the morning, feel rough to the touch or congest easily? Then Medik8 Sleep Glycolic – a leave-on overnight AHA peel – is the logical next step in your evening routine. This at-home treatment with 10% active glycolic acid transforms dull, uneven and congested skin while you sleep, without the redness and irritation usually associated with peels. Perfect if you are new to peels or want to extend the results of a professional treatment.

How it works

The key is encapsulation technology: glycolic acid (AHA) is held within crystals that release the acid gradually overnight. That means high-strength exfoliation with a lower risk of irritation. The glycolic acid loosens the bonds between dead skin cells, revealing a fresher, more radiant complexion and stimulating natural cell renewal. Glycerin keeps the skin hydrated at the same time, so the barrier stays strong and the formula does not dry the skin out. In a 4-week user trial of 34 participants, 97% found their skin felt smoother and 94% reported a visibly brighter complexion.

Texture and where it fits in your routine

The texture is a light, fast-absorbing cream-gel that leaves no film. Use Sleep Glycolic twice a week in the evening on cleansed skin, and not on the same night as your vitamin A product such as Crystal Retinal. Alternate instead: retinal on your other evenings, Sleep Glycolic on your peel nights. If you follow the CSA routine, your mornings stay the same: vitamin C such as C-Tetra followed by sun protection such as Advanced Day Ultimate Protect SPF 50+. For extra hydration, layer with Hydr8 B5 or a comforting night cream. Avoid using on compromised or freshly waxed skin.

Frequently asked questions

Where does this fit in the CSA routine?

On peel nights, Sleep Glycolic replaces your vitamin A step. Keep using vitamin C and sun protection in the morning; SPF 30 or higher is essential as AHAs make skin more sensitive to UV.

Can I combine it with retinal or vitamin C?

Not in the same layer or on the same night as retinal. Vitamin C is used in the morning, so the two work together without issue.

Is it suitable for sensitive skin?

The encapsulated release makes the formula gentler, but build up slowly: start once a week and move to twice weekly if your skin tolerates it well.

Sleep Glycolic contains 10% active glycolic acid (AHA) encapsulated in crystals that release the acid gradually overnight. This delivers high-strength exfoliation with a lower risk of redness and irritation. The glycolic acid loosens dead skin cells and stimulates natural cell renewal, refining skin tone and texture so that pigmentation spots and fine lines appear less noticeable. A low pH of 3.5 keeps the acid active and effective, while glycerin supports hydration so the skin barrier stays strong and the skin is not left dry.

Use Sleep Glycolic twice a week in the evening on cleansed, dry skin. Apply a thin, even layer to face and neck, avoiding the eye area, and allow it to absorb fully. Follow with a moisturiser if needed. Start with once a week and build up gradually. Always apply sun protection of at least SPF 30 the next morning. Do not use on the same night as retinal.

After the first few applications skin already feels smoother and looks fresher in the morning. With regular use the complexion becomes visibly brighter, texture is refined and uneven pigmentation and fine lines appear less noticeable. In a 4-week user trial, 97% found their skin felt smoother and 94% saw a brighter complexion.

• Glycerin – Intensely hydrates and has a soothing effect
• Glycolic acid – An AHA that removes dead skin cells, leaving the skin smooth and soft.

Aqua (Water), Glycolic Acid, Cyclodextrin, Caprylic/Capric Triglyceride, Dimethicone, Glyceryl Stearate, Sucrose Stearate, Sodium Hydroxide, Glycerin, Phenoxyethanol, Lespedeza Capitata Flower/Leaf/Stem Extract, Propanediol, Xanthan Gum, Ethylhexylglycerin, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Polysorbate 60, Sorbitan Isostearate.

The manufacturer is responsible for the composition of the product. As the composition may change, we recommend always checking the ingredients on the packaging.