Safety Tooling

Essential-Oil Safety Limits (IFRA)

Check each essential oil against its maximum safe amount for your product type, set by (the International Fragrance Association, the fragrance industry's standards body), and confirm the total essential-oil load stays within the safe ceiling for melanin-rich skin.

Product category

Serums, creams, balms used on the face

Volatile load

1.00%

Ceiling 1.0%

All EOs within IFRA cap and volatile load is safe for facial leave-on.

Essential oil

% in formula

IFRA cap

Lavandula angustifolia

Floral

Essential oil

% in formula

IFRA cap

Boswellia sacra

Resin

BST · Gold standard for mature dark skin and the look of scars.

About these limits

Caps are conservative interpretations of IFRA 51st Amendment Category 5A (face leave-on), 5B (body leave-on), and 9 (rinse-off). Volatile-load ceilings (1% face, 3% body, 5% rinse-off) reflect BST's stricter dark-skin protocol — irritation on melanin-rich skin often leaves post-inflammatory hyperpigmentation, so we formulate well below industry maximums. Always confirm against current IFRA standards for commercial release.