Glycerin
What is Glycerin
Glycerin (also called glycerol) is one of the most researched, safest, and most effective ingredients in dermatology. It’s simple, affordable, and incredibly powerful — which is why you’ll find it in almost every good moisturiser or serum. Because, as we know, it's a base ingredient.
What exactly is glycerin?
Glycerin is a humectant, meaning it attracts water.
It pulls:
• moisture from the environment
• water from deeper layers of the skin
…into the top layer (stratum corneum), keeping skin hydrated and healthy.
Think of it like a water magnet for your skin.
How glycerin improves skin (clinically)
1. Deep hydration
Glycerin increases water content in the stratum corneum.
Result:
• plumper skin
• less flaking
• smoother texture
• healthy glow
Hydrated skin also reflects light better → natural radiance.
2. Strengthens the skin barrier
This is one of its biggest benefits (and often overlooked).
Glycerin helps:
• restore lipids
• reduce transepidermal water loss (TEWL)
• improve barrier repair
A strong barrier means:
• less sensitivity
• less redness
• fewer breakouts
• better tolerance to treatments (lasers, peels, actives)
3. Supports skin healing
Research shows glycerin:
• improves cell maturation
• supports normal skin shedding
• speeds barrier recovery
So it’s excellent for:
• post-laser
• post-peel
• dry/eczema-prone skin
• compromised skin
It helps skin heal faster and more calmly.
4. Softens and smooths rough skin
Glycerin improves desquamation (natural exfoliation).
It gently:
• softens dead skin
• reduces roughness
• smooths texture
Without irritation, such as strong acids or scrubs.
Great for:
• dry patches
• keratosis pilaris
• flaky winter skin
5. Works for ALL skin types
Safe for:
✔ oily skin
✔ acne-prone
✔ sensitive
✔ rosacea
✔ mature skin
✔ post-treatment skin
Unlike heavy oils, glycerin hydrates without clogging pores or feeling greasy.
Non-comedogenic. Non-irritating.
6. Makes other products work better
Hydrated skin absorbs ingredients more effectively.
So glycerin:
• improves penetration of serums
• boosts active performance
• enhances moisturisers