Question 1

What does sandalwood etc.) do in a cosmetic formula?

Accepted Answer

This ingredient is used primarily as a fragrance material, adding a warm woody scent profile to perfumes, skincare, haircare, and body products. It may also contribute minor skin-conditioning effects, but scent is its main formulation role.

Question 2

Is sandalwood etc.) clean?

Accepted Answer

From a clean-beauty perspective, this ingredient is generally accepted when naturally sourced and properly disclosed, but it can contain fragrance allergens and sensitizing constituents for some users. It is not usually a restricted-list issue on its own, though brands often treat it under broader fragrance-allergen policies.

Question 3

Is sandalwood etc.) sustainable?

Accepted Answer

This material is typically derived from slow-growing trees, so traceable sourcing and certified plantations matter. It is biodegradable in principle, but supply-chain pressure, land use, and species protection are the main sustainability considerations.

Question 4

Is sandalwood etc.) COSMOS-approved?

Accepted Answer

It can be permitted under COSMOS-natural and COSMOS-organic standards when obtained from approved botanical material through accepted physical processes. Its Green Chemistry fit is mixed, since it is renewable and biodegradable, but yields are low and responsible sourcing is essential.

Question 5

How does sandalwood etc.) work chemically?

Accepted Answer

Chemically, it is a complex mixture dominated by lipophilic sesquiterpene alcohols, which are responsible for its long-lasting odor profile and substantivity. In leave-on formulas it is typically used at low fragrance levels, often well below 1%, and it should be protected from oxidation with suitable packaging and antioxidant support.