Oxidation Hair Dyes – Type-2, as per IS 8481:2020, are semi-permanent or tone-on-tone hair coloring products in liquid, gel, or cream form, intended to provide color enhancement, blending of grey hair, or subtle color changes. These formulations involve pre-formed dye molecules or milder oxidation dyes that require lower concentrations of hydrogen peroxide compared to Type-3 (permanent dyes).
These dyes typically contain:
Low levels of primary intermediates and couplers
Emollient-rich cream or gel base for easy application
Fragrance, stabilizers, emulsifiers, and conditioners for improved hair feel and scalp comfort
The product is designed to:
Deliver natural-looking color results with lower chemical intensity
Be gentler on the hair and scalp
Fade gradually over several washes
Be applied with or without a mild oxidizing agent
Testing of Type-2 oxidation hair dyes under IS 8481:2020 ensures safe usage, uniform performance, and compliance with cosmetic regulations, especially due to the presence of chemical dye components.
Verify the identity and permissible limits of dye intermediates and couplers
Test pH value to ensure scalp compatibility and product stability
Check for heavy metals like lead, arsenic, and mercury within BIS-specified limits
Evaluate microbiological safety to ensure the product is free from harmful bacteria or fungi
Confirm product stability (resistance to separation, degradation, or color change over time)
Ensure no presence of banned ingredients or unapproved coloring agents
Verify mandatory labeling requirements, including usage instructions, patch test advisory, and safety warnings
Assess packaging integrity and compliance with BIS cosmetic standards
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