How does Bigen Permanent Powder compare to Bigen Semi-Permanent?

Both deposit color without lightening the hair, but they differ in formula and longevity.

Bigen Permanent Powder is an oxidative dye that is activated by water and penetrates slightly into the hair for longer-lasting color—up to 20 shampoos. Because it doesn't lighten your hair, it’s more gentle to the hair compared to typical permanent dyes and ideal for covering gray or enhancing natural tones with long lasting results.

Bigen Semi-Permanent Hair Color contains no peroxide and coats only the surface of the hair, making it less invasive. It’s gentle enough for the hair for use on relaxed or bleached hair—even on the same day. Compared to Bigen Permanent Powder, it doesn’t last as long, typically holding color for about 8 shampoos depending on the shade and hair condition. This shorter wear time can be a fun benefit if you enjoy changing your hair color more often. To achieve full gray coverage on natural hair, heat is needed.