How to use them
Use them in the same routine at night. Apply Lactic Acid first, then Tea Tree Oil, moving from thinnest to thickest texture.
- 1CleanseGentle cleanser, pat dry
- 2Lactic Acid5% – 10%, wait about 1 minute
- 3Tea Tree Oil5% (diluted)
- 4Moisturiserseal everything in
What Lactic Acid does
A gentler AHA with a larger molecule. It exfoliates while also acting as a humectant, so it suits dry and sensitive skin that cannot tolerate glycolic acid.
- Typical strength
- 5% – 10%
- When
- PM
- Irritation
- Best for
- Dry, Normal And Sensitive skin
Everything that pairs with Lactic 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 Lactic Acid and Tea Tree Oil together?
Yes, it is safe. There is no known chemical conflict between Lactic Acid and Tea Tree Oil, and neither makes the other less effective.
Which goes first, Lactic Acid or Tea Tree Oil?
Apply Lactic Acid first, then Tea Tree Oil. The general rule is thinnest to thickest texture, and lowest pH first.
Should I use Lactic Acid in the morning or at night?
Lactic Acid: best at night. Use 2–3 nights a week. It is good for beginners to exfoliation. Follow with a moisturiser, and wear SPF the next day.
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 Lactic 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.