Is this a dye or a shampoo?

It is both: a liquid shampoo that deposits semi-permanent black color while cleansing. Apply the foam to dry hair, massage 5–10 minutes and rinse.

Do I need a patch test?

Yes. The formula contains hydrogen peroxide, and the brand requires an allergy test on skin at least 24 hours before each use.

How often should I use it?

For maintenance, the brand suggests every 10–15 days to keep the color and conditioning.

Will it cover gray hair?

It is marketed for full coverage of visible grays, but results vary; reviews are mixed on how even the black looks.

Is it safe for sensitive scalps?

No. The brand says not to use it on irritated or rash-prone scalps, on eyebrows or eyelashes, or if you have sensitive skin.

What is the best price?

$16.99 at Walmart as of November 7, 2026, with two stores listing it new.

Where is the AKOIIN Black Hair Dye Shampoo cheapest?

At Walmart, for $16.99, as of our latest check.

What do buyers say about the AKOIIN Black Hair Dye Shampoo?

Rated 3.9 out of 5 from 19 ratings.

Where can I buy the AKOIIN Black Hair Dye Shampoo?

2 stores we checked sell it, including Walmart, Amazon.

AKOIIN Black Hair Dye Shampoo

Best price now

$16.99at WalmartObserved at 12:12 PM

Compared across 2 stores. Prices are checked against each store and labelled with when.

Visit Walmart

What reviewers say

3.9 / 519 ratings

Buyers who like it tend to value the easy one-step application and the low price; the main complaints concern color payoff and scalp sensitivity.

What people mention

Color payoffMixedSome users find the black rich and full-coverage; others say it looks uneven or less natural.
Scalp sensitivityCriticisedA few buyers report itching or irritation, which is why the 24-hour patch test matters.
Ease of usePraisedReviewers like the simple foam-and-rinse routine and the short 5–10 minute wait.
FadeCriticisedThe semi-permanent color fades, so users are told to reapply every 10–15 days.

About the AKOIIN Black Hair Dye Shampoo

Hair Dye Shampoo – 3‑in‑1 Long‑Lasting Color, Deep Nourishment & Strength (500ml) Transform your hair color routine with the simplicity of a shampoo. Try Hair Dye Shampoo today for naturally dark, healthy, and radiant hair. Benefits - Long‑lasting natural color - Deeply nourishes - Strengthens hair - Enriched with herbal extracts - Easy 3‑step process - Maintenance made simple How to Use: Patch test required – At least 24 hours before first use, apply a small amount to skin. If no reaction occurs, proceed. Wear gloves. – Pump the required amount of shampoo into your hand and mix until it becomes foamy. – Apply white foam to dry hair, focusing on areas with the most visible grays. Gently massage for 5‑10 minutes. – Rinse thoroughly with clean water. Tip: For best results, use every 10‑15 days to maintain long‑lasting color and keep your hair nourished. Ingredients: Aqua, Hydrogen peroxide, Cetearyl alcohol, Whale stearyl-20, Phosphoric acid, Disodium EDTA, Polygonum multiflorum extract, Ginger extract, Platycladus orientalis leaf extract, Ginseng extract, Ganoderma lucidum extract. Safety & Storage: Allergy test mandatory – Must be conducted at least 24 hours before each application. If itching, redness, swelling, or irritation occurs, wash immediately and do not use. - Do not use on eyebrows, eyelashes, rash‑prone or irritated scalp, or if you have sensitive skin. - Avoid eye contact. If accidental contact occurs, rinse immediately with plenty of water. - If any allergic reaction develops, discontinue use and consult a doctor. - Storage: Store in a cool, dry place away from direct sunlight. Keep out of reach of children.