What they actually do: ceramides are lipids that make up roughly half of the skin’s outer barrier structure. Enough ceramides: skin holds water, keeps irritants out, feels calm. Depleted (over-cleansing, over-exfoliating, retinoid enthusiasm, winter): tight, flaky, stinging, reactive.
Who they’re for: everyone using actives, everyone with dry or eczema-prone skin, everyone in December. Ceramide moisturisers are what let you stay on your retinoid.
How to use them: in your moisturiser, daily. No conflicts, no adjustment period, no maximum.
Honest expectations: calmer, less reactive skin within days to weeks. Not glamorous, just structural.
The BYOUT Library is educational content, not personalised medical advice. For persistent or severe skin concerns, a dermatologist beats any article, including ours.