The Opulora letter
Routines for Canadian seasons, new arrivals and our latest guides. No spam, unsubscribe any time. Read our privacy policy.
Questions? opulorabeauty@gmail.com
Free tracked shipping across Canada · Free 30-day returns · Prices in CAD
Skincare · Makeup · Hair · Body · Fragrance





Every order ships free with tracking. Processing is usually 1–2 business days and delivery 5–12 business days.
Email us your order number within 30 days of delivery and we send a prepaid return label the same business day. Opened cosmetics can be returned if faulty, damaged or not as described.
Send the product link, your skin type or the shade you use now to opulorabeauty@gmail.com and we reply within one business day.
cosmpro Dark Brown Hair Dye Shampoo is an all-in-one color-and-cleanse formula that quickly covers gray hair and restores a natural dark-brown shade with simple at-home use.
This product combines cleansing, conditioning, and temporary permanent-like color in a single shampoo so you can refresh your hair tone without salon visits. The shampoo is formulated to coat strands evenly, reduce the appearance of grays, and deliver a natural dark-brown finish with no separate developer or complicated mixing. It works for both women and men who want a fast, discreet way to blend away gray and regain a youthful, uniform color.
The formula deposits pigments as you lather, surrounding each visible gray strand to make it blend with the rest of your hair. Coverage builds during the 20–25 minute processing time and rinses out to a consistent dark-brown tone rather than streaky patches. Repeated use maintains depth and helps new grays blend more quickly.
Yes — there’s no need for bowls, brushes, or developers. Put on gloves, apply the shampoo to damp hair, work into a lather, leave for the instructed time, then rinse. The process mirrors a regular shampoo routine with one extra step, making it approachable for first-time users.
Duration varies with hair type, washing frequency, and pore openness, but color typically lasts through multiple washes and can be refreshed with repeat treatments. Use color-safe or sulfate-free shampoos to prolong the tone, and space refresh treatments according to visible fading. Regular conditioning helps maintain shine and manageability.
cosmpro Dark Brown Hair Dye Shampoo is formulated for a broad range of hair textures and lengths, but users with sensitive scalps should patch-test first. Because this is a color-depositing product, results may differ on chemically treated, very light, or porous hair. If you have a history of allergic reactions to hair-color products, perform a skin patch test before full application.
Who is this for: cosmpro Dark Brown Hair Dye Shampoo is designed for men and women seeking an easy, at-home method to conceal gray hair and achieve a natural dark-brown shade without salon appointments. It’s ideal for busy people who want quick maintenance between professional color services, caregivers looking for a simple solution for elders, and anyone wanting to refresh their natural tone with minimal fuss. If you prefer precise color control, frequent dramatic color changes, or have known sensitivities to hair dyes, consider consulting product instructions or a professional stylist first.
Refer to product packaging, label or user instructions
Q: How long do I leave the shampoo on to cover grays?
A: Lather on damp hair and leave for 20–25 minutes before rinsing for optimal gray coverage.
Q: Can I use this on chemically treated or dyed hair?
A: Yes, but results may vary on chemically treated or porous hair; patch-test and adjust reapplication frequency as needed.
Shipping: free tracked shipping to every Canadian province and territory on every order. Most orders are processed within 1–2 business days and arrive within 5–12 business days; you receive a tracking link by email as soon as it ships.
Returns: free returns within 30 days of delivery on unopened, unused items in their original packaging. Email us your order number and we send a prepaid return label the same business day. For hygiene reasons, opened cosmetics can only be returned if they are faulty, damaged or not as described.
Reaction or damaged item? Stop using the product and email us within 30 days; we refund or replace it.
Routines for Canadian seasons, new arrivals and our latest guides. No spam, unsubscribe any time. Read our privacy policy.
Thanks for subscribing!
This email has been registered!