About MEIDU and this reference site
We blend the formulas and fill the bottles for MEIDU hair color. This site is the direct reference we maintain for the full line, explaining the chemistry in the liquid, the shades we offer, and how the products are applied.
What is in the range
Our full line contains 20 items divided across three parts: the shades, the mixing bench, and wash-in care. The color shampoo comes in 9 shades, supplied in bottles of 400 ml and 500 ml. Each color product dispenses as one liquid directly from the pump.
The dye chemistry we use
MEIDU is a permanent oxidative hair dye. It is not a herbal rinse, not a semi-permanent gloss, and not a toner. The formula works because its ingredient list carries p-phenylenediamine, resorcinol, m-aminophenol, and ethanolamine together with hydrogen peroxide. A skin test 48 hours before the first coloring is printed on every listing.
How the store operates
We formulate and bottle the color, but we do not operate the retail store. All ordering, payment collection, packing, parcel transit, returns, and refunds are handled entirely by our retail partner. Inquiries regarding delivery status or return requests must be directed to the retailer that processed the purchase.
Contacting us
You can reach us with technical questions about our shade range, formula ingredients, skin test instructions, or product verification. Letters reach us at an office in Boston, MA. There is no counter at that location, nothing to try on, and no packages are accepted there. An e-mail address is printed in the footer of every page.