Contact GreyCover
GreyCover is a small, independent, ad-supported site — there is no support team standing by, but a real person reads what comes in to support@greycover.com.
A few things this address is genuinely useful for: a calculator that gave you a result you think is wrong (say which tool — the gray coverage calculator, developer volume calculator, color mix ratio calculator, going gray timeline, root touch-up scheduler, or toner mix calculator— and what you entered); a tool or topic you wish existed on the site; an out-of-date fact or broken link in the blog, learn section, or the Hair Museum; or a bug in how a page looks or behaves on your device.
There’s no fixed response time to promise, and no ticket number or live chat — email is read and handled as it comes in. If a question is really about a scalp reaction, an allergy, or a chemical hair-history concern, a licensed colorist or a doctor will have a more authoritative answer than this site can give; GreyCover’s tools produce general estimates, not professional cosmetology or medical determinations, and the site isn’t affiliated with any hair-color brand or salon chain.
Before writing in about a tool result, it can help to double-check the numbers you entered — grey percentage, hair length, or mix amounts are the most common source of a surprising answer. If it still looks wrong after that, that’s exactly the kind of message worth sending.