How to use them
Use them in the same routine at night. Apply Glycolic Acid first, then Tea Tree Oil, moving from thinnest to thickest texture.
- 1CleanseGentle cleanser, pat dry
- 2Glycolic Acid5% – 10%, wait about 1 minute
- 3Tea Tree Oil5% (diluted)
- 4Moisturiserseal everything in
What Glycolic Acid does
The smallest alpha-hydroxy acid, so it penetrates deepest. It dissolves the bonds between dead skin cells for smoother, brighter skin and fades marks, but it is the AHA most likely to sting.
- Typical strength
- 5% – 10%
- When
- PM
- Irritation
- Best for
- Normal, Oily And Combination skin
Everything that pairs with Glycolic Acid →
What Tea Tree Oil does
An essential oil with modest evidence against mild acne. It works more slowly than benzoyl peroxide but causes less dryness. Undiluted it can irritate or sensitise skin, so it belongs in a formulated product.
- Typical strength
- 5% (diluted)
- When
- AM/PM
- Irritation
- Best for
- Oily And Combination skin
Everything that pairs with Tea Tree Oil →
Frequently asked questions
Can I use Glycolic Acid and Tea Tree Oil together?
Yes, it is safe. There is no known chemical conflict between Glycolic Acid and Tea Tree Oil, and neither makes the other less effective.
Which goes first, Glycolic Acid or Tea Tree Oil?
Apply Glycolic Acid first, then Tea Tree Oil. The general rule is thinnest to thickest texture, and lowest pH first.
Should I use Glycolic Acid in the morning or at night?
Glycolic Acid: best at night. Use 2–3 nights a week after cleansing. Skip it on nights you use retinoids. Sunscreen is non-negotiable because AHAs raise sun sensitivity.
Should I use Tea Tree Oil in the morning or at night?
Tea Tree Oil: works morning or night. Use a product with around 5% tea tree, or dilute it. Never apply the pure oil straight to the face. Patch test first.
Is Glycolic Acid with Tea Tree Oil safe during pregnancy?
Neither is a known risk in normal cosmetic amounts, but guidance varies for Tea Tree Oil. Check with your doctor.