Casting Crème Gloss Gray Coverage Due to Product Limitations

Confirm this cause by identifying the hair texture as coarse or wiry, which resists color absorption. Verify that the product is a semi-permanent, ammonia-free formula which, by design, provides only up to 70% blending rather than 100% opaque coverage. This is the most likely cause if the hair is healthy but resistant to non-ammonia chemical penetration.

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