Name: Medik8 Sleep Glycolic™
Brand: Medik8
Price: 36.00 GBP
Availability: InStock

£36.00

Tax included.

Quantity

✓ 10% Active Glycolic Acid | ✓ Time-Release Crystal Technology | ✓ No Irritation or Downtime

Medik8 Sleep Glycolic – The 10% active glycolic acid overnight peel that resurfaces your skin while you sleep, without the usual redness and irritation.

Most high-strength glycolic acids come with a catch: visible results paired with peeling, stinging, and days of red, angry skin. Sleep Glycolic changes the game. Using crystal encapsulation technology, the formula gradually releases glycolic acid throughout the night, giving your skin the full exfoliating power at a pace it can handle. Wake up to noticeably brighter, smoother, and decongested skin – not a flaky, irritated mess.

The secret is in the delivery. At a pH of 3.5, this formula ensures the glycolic acid is fully active and able to penetrate effectively. The cyclodextrin crystal shell controls release over 8+ hours, keeping your skin barrier comfortable while dead cells are dissolved away. Use it 2-3 times per week and you'll see dull, uneven texture transform into a genuinely radiant complexion.

Visible Results Users Love

97% reported smoother skin after 4 weeks of use
95% saw visibly brighter, more illuminated skin tone
91% noticed visible skin resurfacing and improved texture
Minimised appearance of fine lines, wrinkles, and hyperpigmentation
Reduced congestion and fewer blemishes forming
Skin looks refreshed – like you've actually had a full night's sleep

Why This Beats Standard Glycolic Acid Products

True 10% active acid value at pH 3.5 – most drugstore glycolics are inactive at higher pH levels, meaning they barely work
Crystal encapsulation technology delivers acid gradually overnight = powerful results with minimal irritation risk
Leave-on treatment penetrates deeper than wash-off formulas that rinse away in seconds
No downtime – no visible peeling, no angry red skin the next day
Perfect as at-home maintenance between professional peels or as a gentle introduction to chemical exfoliation
UK's leading dermatological brand with B Corp certification

Best For

Dull, lacklustre skin that needs a luminosity boost
Uneven texture, enlarged pores, and congested complexions
Early signs of ageing – fine lines, wrinkles, and dark spots
Those who've tried glycolic before and experienced irritation
Preparing skin for a special event (wedding, party, photoshoot)
Extending results between professional in-clinic peels

FAQS

What's the difference between Sleep Glycolic and Press & Glow? +

Press & Glow is an everyday exfoliating toner using gentle PHAs (polyhydroxy acids) designed for daily use. Sleep Glycolic is a more intense treatment with 10% active glycolic acid for stubborn skin concerns – fine lines, hyperpigmentation, and deeper congestion.

Use Press & Glow daily for maintenance brightness. Use Sleep Glycolic 2-3 times weekly when you need serious resurfacing. On Sleep Glycolic nights, skip Press & Glow entirely.

Will Sleep Glycolic cause peeling or irritation? +

Unlike traditional glycolic peels, Sleep Glycolic uses crystal encapsulation technology to release the acid gradually throughout the night. This controlled delivery means you get the full resurfacing benefits without the harsh side effects.

Most users experience minimal tingling upon application – this is normal and indicates the product is active. If you've previously reacted badly to glycolic, Sleep Glycolic's time-release formula may work better for you.

How quickly will I see results? +

Many users notice brighter, smoother skin the very next morning. In clinical trials over 4 weeks:

97% reported smoother skin surface
95% saw visibly brighter skin tone
91% noticed visible skin resurfacing

For significant improvement in fine lines, dark spots, and texture, expect 4-8 weeks of consistent use.

Can I use Sleep Glycolic with retinol or Crystal Retinal? +

Yes, you can layer vitamin A products over Sleep Glycolic. Apply Sleep Glycolic first after cleansing, then follow with your retinoid and night moisturiser.

However, if you're new to actives or have sensitive skin, consider alternating nights rather than layering – Sleep Glycolic on Monday/Thursday, retinoid on Tuesday/Friday/Sunday.

Can I use this before a professional peel or facial? +

Sleep Glycolic is ideal for preparing skin before your first professional peel experience – it acclimates your skin to glycolic acid at a gentler pace. It's also perfect for extending results between in-clinic treatments.

Avoid using Sleep Glycolic for 3-5 days before a professional treatment to prevent over-exfoliation. Resume use as directed by your skincare professional.

Do I need to wear sunscreen after using Sleep Glycolic? +

Absolutely. Glycolic acid increases photosensitivity, making skin more vulnerable to UV damage. SPF is non-negotiable the morning after every use – even on cloudy days, even if staying indoors.

This is why Sleep Glycolic is formulated for evening use only. Never apply during the day.

Medik8 Sleep Glycolic™