Question 1

What does Rosmarinus[2] do in a cosmetic formula?

Accepted Answer

This is an imprecise botanical listing, but in personal care it most often points to a plant-derived extract used as an antioxidant and skin-conditioning component, or to a volatile fraction used for scent. Its role is usually supportive rather than structural.

Question 2

Is Rosmarinus[2] clean?

Accepted Answer

Clean-beauty standards generally accept this type of botanical material, but volatile fractions can bring fragrance-allergen labeling considerations and higher sensitization potential than non-fragrant extracts. The main quality issue is clear specification of plant part, extraction method, solvent, and allergen profile.

Question 3

Is Rosmarinus[2] sustainable?

Accepted Answer

This material is plant-derived and typically renewable, with good biodegradability compared with persistent synthetic film-formers or silicones. Sustainability depends on agricultural practices, extraction yield, solvent choice, and whether the supply chain verifies responsible cultivation.

Question 4

Is Rosmarinus[2] COSMOS-approved?

Accepted Answer

It can be permitted under COSMOS-natural and COSMOS-organic when sourced and processed through allowed botanical extraction methods, with organic status dependent on certified agricultural origin. From a Green Chemistry view, it fits best when made with physical processing or benign solvents and documented low-residue extraction.

Question 5

How does Rosmarinus[2] work chemically?

Accepted Answer

This material is a complex botanical mixture, with non-volatile extracts typically richer in phenolic antioxidants and volatile fractions richer in small terpene molecules. Antioxidant extracts are often used around 0.02% to 0.5%, while scenting fractions are commonly used at low fragrance levels and need oxidation control because terpenes can form sensitizing oxidation products over time.