The main difference between beard dye and temporary beard color is the longevity of the color.
Beard dye is a permanent hair color that penetrates the hair shaft and lasts until the colored hair grows out or is cut off. It is typically used to cover gray hairs or to change the natural color of the beard. Beard dye requires mixing with a developer and can be applied at home or at a salon.
On the other hand, temporary beard color is a non-permanent hair color that coats the outside of the hair shaft and can be washed out easily. It is typically used for special occasions or for experimenting with new colors without committing to a permanent change. Temporary beard color can be applied in the form of sprays, gels, or powders.
So, the best choice between beard dye and temporary beard color depends on your preference and needs. If you want a long-lasting color change or need to cover gray hairs, beard dye may be the better choice. However, if you want a temporary change or want to experiment with different colors without a long-term commitment, temporary beard color may be the better option