HC Blue No. 16 ●
TL;DR. This ingredient functions as a direct hair colorant, adding it tone in semi-permanent and color-depositing formulas. It is used for fashion shades, toning, and shade correction on hair fibers.
What does HC Blue No. 16 do in a cosmetic formula?
This ingredient functions as a direct hair colorant, adding it tone in semi-permanent and color-depositing formulas. It is used for fashion shades, toning, and shade correction on hair fibers.
Is HC Blue No. 16 clean?
This ingredient has clean-standard friction because it is a synthetic hair dye with concentration limits and sensitization considerations. It is more regulated and more debated than simple conditioning or humectant ingredients.
Is HC Blue No. 16 sustainable?
This material is synthetically produced, generally from petrochemical aromatic chemistry rather than renewable feedstocks. Biodegradability and aquatic fate data are limited, and rinse-off hair color can contribute colored organic residues to wastewater.
Is HC Blue No. 16 COSMOS-approved?
This ingredient is not permitted under COSMOS organic or COSMOS natural finished products as a synthetic hair colorant. Its Green Chemistry alignment is weak because it relies on multi-step synthetic chemistry, nonrenewable feedstocks, and uncertain biodegradation.
How does HC Blue No. 16 work chemically?
The molecule is a small synthetic chromophore designed to deposit directly onto keratin rather than form color through oxidative coupling. It is typically used at low levels in hair-color systems and performs best when pH, solvent balance, and conditioning agents support dye uptake and shade stability.
Last updated 2026-05-13