Picture a sponge that’s been squeezed dry. That’s your hair if you dye it every week. Demi dye adds moisture, sure, but too much peroxide dries things out.
You’ll get brassy tones that look like a bad disco ball. Or worse—a weird muddy color that doesn’t match your vibe. Not cute.
Also: your ends get thirsty. They absorb color like crazy. You’ll end up with darker tips and lighter roots. That’s a reverse ombré nobody asked for.
The Quirky Exceptions (Because Life Is Weird)
Some hair types are built different. Gray hair? It’s porous and grabs color fast. You might need touch-ups every 3 to 4 weeks.
Blonde or bleached hair? Be careful. That stuff is like a straw. Applying demi too often can make it snap. Stick to the 6-week rule—seriously.
Demi-Permanent Hair Color: The Complete Guide
And if you use a color-depositing conditioner (a demi cousin)? That’s a whole other party. You can slap that on weekly. It’s like a hydrating snack, not a full meal.
