4-Terpineol
A component of essential oils, including tea tree. It adds scent and a mild soothing effect; some people may develop allergy.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Moderate
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
4-Terpineol (INCI: 4-Terpineol) is an aromatic component of essential oils, found mainly in tea tree oil. In formulas it provides scent and a light soothing touch, and it sometimes accompanies actives aimed at oily, acne-prone skin. In role it is a sensory and supporting ingredient. There is interest in tea tree for acne-prone skin, but pinning that effect on isolated 4-terpineol goes too far: its realistic contribution is fragrance and a calming touch, not acne treatment on its own. Topically there is no meaningful systemic exposure, so it can be used during pregnancy and breastfeeding. Irritation potential is low, but as an essential-oil component it carries a medium allergy risk. Most people tolerate it; on skin sensitized to essential oils it can cause itching or redness.
Frequently asked questions
Is 4-Terpineol safe during pregnancy?
4-Terpineol is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is 4-Terpineol for?
4-Terpineol suits: normal, dry, combination, oily, sensitive.
What is 4-Terpineol and what does it do in cosmetics?
A component of essential oils, including tea tree.
What's the INCI name for 4-Terpineol?
The INCI name is 4-Terpineol. It may also appear as: Terpinen-4-ol.
See 4-Terpineol in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Similar role in the formula
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