Sleep Glycolic FAQs

Can you use Sleep Glycolic with other Direct Acids?

We don’t recommend to layer Direct Acids in the same routine. For example, we recommend to switch out Press & Glow on the evenings you want to use Sleep Glycolic.

Can I use Sleep Glycolic alongside a wash-off acid cleanser/treatment?

Sleep Glycolic can be used with acid cleansers or treatments, for example Surface Radiance Cleanse.

Unfortunately, we are unable to provide medical advice relating to our products. We would advise speaking with your Physician or Midwife so that they can give you an accurate recommendation. The full ingredients list for each of our products can be found on the product pages of the medik8.us website as well as on the back of each pack.

For general guidance, we would recommend that you avoid the following during pregnancy: Vitamin A serums, including Intelligent Retinol, Crystal Retinal, any r-Retinoate and Night Ritual Vitamin A

Leave on peels, including Sleep Glycolic

This list is not exhaustive and must be used in conjunction with the advice from a medical professional.

Can I use Sleep Glycolic in the morning?

We do not advise to use Sleep Glycolic during the day, as glycolic acid can make skin more sensitive to sun damage. Instead, use 2-3 times a week after cleansing in the evening. Follow with other serums and moisturizer. Always use SPF the morning after.

Sleep Glycolic is suitable for normal skin types - including congested skins, oily skin types, and uneven textured skins. A high strength exfoliating acid product, we do not recommend it for very sensitive skins.

Can I use Sleep Glycolic with vitamin A?

Yes, Sleep Glycolic can be used with vitamin A - you can find it in the Time Rewind evening regime alongside Crystal Retinal. They can provide improved results when used in combination.

Can Sleep Glycolic be used when phasing in new strength or type of vitamin A with Medik8’s phase-in instructions?

We would not recommend the use of Sleep Glycolic for new users phasing-in vitamin A. While the effects of vitamin A are optimized with the use of Sleep Glycolic, we would always advise users to allow their skin to get used to the prior before attempting to accelerate their results.

Once skin has gotten into the rhythm of using vitamin A nightly (once phase-in has been completed, or a couple of weeks of using a new strength) Sleep Glycolic is ideal for enhancing the visible benefits.

Can I use Sleep Glycolic in the summer months?

Exfoliating acids, including Sleep Glycolic, are completely safe to use in the summertime or on holiday, as long as you are applying a high protection sunscreen every day. We strongly recommend applying an ample amount of sunscreen like Physical Sunscreen the day after using Sleep Glycolic, as glycolic acid is known for making skin more sensitive to sun damage. If you are in direct sunlight, we recommend you reapply sunscreen every 2 hours.

How do I use Sleep Glycolic alongside a peeling course like 12 Weeks to Wow?

We do not recommend the use of leave-on acids during 12 Weeks to Wow, to allow the skin barrier time to heal between frequent peels.

However, Sleep Glycolic is a great option for use during the 6-8 week breaks between 12 Weeks to Wow courses, to help maintain results.

If you are having less frequent peels (eg. every 3 months), then Sleep Glycolic is ideal to use in between peels to maintain and optimise results.