Question 1

What does BHT. \ +/- Mica do in a cosmetic formula?

Accepted Answer

This ingredient is primarily an antioxidant, used to slow rancidity and color or scent changes in oils, waxes, fragrances, and anhydrous products. It does not function as a broad antimicrobial preservative.

Question 2

Is BHT. \ +/- Mica clean?

Accepted Answer

From a clean-beauty perspective, this ingredient is commonly flagged because it is synthetic and appears on some restricted or no-list frameworks due to endocrine-screening debate. Skin irritation is generally low at cosmetic use levels, but its standards friction is real.

Question 3

Is BHT. \ +/- Mica sustainable?

Accepted Answer

This material is typically made from petrochemical feedstocks and is not considered readily biodegradable. Environmental assessments often note persistence and bioaccumulation potential, especially compared with more biodegradable antioxidant systems.

Question 4

Is BHT. \ +/- Mica COSMOS-approved?

Accepted Answer

It is not permitted under COSMOS natural or organic certification. Its Green Chemistry fit is limited by fossil-based sourcing and poor biodegradability, although very low use levels can help reduce formula oxidation and product waste.

Question 5

How does BHT. \ +/- Mica work chemically?

Accepted Answer

The molecule is a lipophilic hindered phenol that interrupts lipid autoxidation by donating a phenolic hydrogen to reactive radical species. Typical cosmetic use is often around 0.001% to 0.1%, mainly in oil phases or anhydrous systems, with good stability across normal cosmetic pH ranges.