There's a coloring shampoo smell and I'm getting on well with it

LEVERO · Hair Dye
Reviewers keep calling it a dye, not a shampoo — and mean it as praise.
Two-bottle set · a year of roots
By the maker's count a bottle is about fifteen applications on short hair — on roots alone, two bottles is a year or more. All over on longer, heavier grey it is closer to a bottle a month, so two sorts the next two months. The shades don't have to match. Start with the darker one: you can lighten by washing less often, but too light on stubborn grey never gets there.
$27.00 a bottle — about fifteen applications each on short hair. Any two bottles, any shades. Applied automatically in your bag — no code needed.
Ten seconds on the parting on the days you have not re-dyed yet. Washes out.
Applied like a dye — a colour shampoo with no animal-derived ingredients on the label, rated 4.7 across 9,850 Korean reviews, in Black, Dark Brown and the only Light Brown we stock.
Sent in by customers, not shot by us. Two or three washes in, which is what most people report.
Before
After
Before
AfterFrames lifted from the creators' own videos, used with permission. Lighting, angle and hair type all move the result — treat these as what it can look like, not what it will look like.
Applied like a dye — a colour shampoo with no animal-derived ingredients on the label, rated 4.7 across 9,850 Korean reviews, and the only Light Brown we stock. Both parts are pumped together from the 300ml bottle, go onto dry or towel-dried hair, and rinse after five to ten minutes. Gloves are in the box, and a named lab has measured the current formula.
Levero is a two-part colour shampoo: press both pumps into your palm, work the lather from roots to ends, wait five to ten minutes, rinse. Korean reviewers keep calling it a dye rather than a shampoo, and they mean it as praise.
Lab-measured, not just claimed — 99.42% grey coverage and 85.48% of the colour still there after five washes, measured by Ace Skin Clinical Research Institute in January–February 2026. Shine, moisture and cuticle condition all measured up against the previous formula.
Five to ten minutes, on dry or towel-dried hair — no bowl, no brush, no salon chair. Give it the full ten on heavy or white grey.
Colour lands on the first wash — the maker's own FAQ says two or three washes in a row set it fully, then keep it up as the roots come through.
300ml, about 15 applications on short hair by the maker's count — around $2 a wash. Any two bottles take an extra 10% off in your bag.
Gloves are in the box — nails are protein, and protein takes colour. A pair of vinyl gloves ships in every carton.
No animal-derived ingredients on the label, ammonia-free, no PPD — ethanolamine does the alkalising; centella, beer yeast and rosemary leaf oil sit in the base.
Pick the shade closest to your hair now — not the shade you want. If in doubt start darker; you can lighten by washing less often.
Shades: Black · Dark Brown · Light Brown — Light Brown is the only shade of its kind in our grey-coverage range, for naturally lighter brown hair.
How to use: Gloves on. Dispense both parts into your palm and mix to a lather. Apply to towel-dried or dry hair — damp holds colour better than soaking wet. Massage from scalp to ends, leave five to ten minutes, rinse with lukewarm water.
Read before you buy: This is an oxidative hair colour. No shade contains PPD, but toluene-2,5-diamine — its closest relative — does the colouring, alongside resorcinol and a hydrogen peroxide developer. If you react to PPD you may well react to this. Patch test 48 hours before every use. We list every ingredient and its risk level below so you can decide for yourself. Never use on eyebrows or lashes.
About the rating: The 4.7 average from 2,192 reviews is aggregated from customer reviews of these same three shades, collected on the maker's own Korean store and imported into our review system. These are not reviews written by DHALIORA customers.
Made in Korea. Ships from Seoul with tracking to the US, Canada, the UK, Australia, Hong Kong and Singapore.
Tested by Ace Skin Clinical Research Institute, 20 Jan – 3 Feb 2026. It matches what buyers say: across 9,850 analysed Korean reviews, “covers grey well” is the single most repeated point — 1,120 mentions.
In the same test 85.48% of the colour was still there after five washes. The maker’s own FAQ says two or three washes in a row set it fully; after that you only top up as the roots come through.
Against the maker’s previous formula the lab measured shine up 146.80%, moisture up 79.80% and cuticle condition up 47.75%. 495 reviewers say the same thing in plainer words: soft, not stiff.
Press both pumps into your palm, lather from roots to ends on dry or towel-dried hair, wait, rinse. 840 reviewers describe it the same way — used like a shampoo, behaving like a dye. Give heavy or white grey the full ten minutes.
Ethanolamine stands in for ammonia. Shades run Black, Dark Brown and Light Brown; Light Brown is the only one of its kind in our grey-coverage range, for naturally lighter brown hair.
A pair of vinyl gloves ships in every carton. About fifteen applications on short hair by the maker’s count; any two bottles take an extra 10% off in your bag.
It sits sixth on the declaration. It is the standard PPD substitute and cross-reaction between the two is common, so a PPD allergy does not become safe here. Patch test 48 hours before every use.
Resorcinol, three aminophenol couplers and a hydrogen peroxide developer are all present. This is the same chemistry class as any box colour, delivered through a shampoo base.
The pack says five minutes. The maker's own FAQ says use it two or three times in a row, then keep it up periodically. Plan for the second answer.
56 Korean reviewers say the colour came out darker than they expected. Worth knowing if you are choosing Light Brown to stay light — judge the first wash before going again.
Choose Levero for what only it does here: no animal-derived ingredients on the label, a Light Brown shade, and a named lab's figures on the current formula — 99.42% coverage and 85.48% still there after five washes. It goes onto dry or towel-dried hair like a dye, and 9,850 Korean reviews say it behaves like one. It screens 8.6: toluene-2,5-diamine does the colouring, and mineral oil and a sulfate cleanser sit further down the list. Go in expecting to patch test, to wear the gloves, to repeat it once or twice, and to get a permanent oxidative colour — because that is what it is.
50 ingredients, listed in label order. Tap any one for its grade and why.
Same grading for every product

Olive Young best-sellers Korea

Another no-PPD route, and a gentler one on paper — it darkens through THB with no coupler set and no developer at all, so its mid/high list is far shorter than ours. What it cannot do is cover: the tone deepens over weeks and stalls where it stalls. Ours is a permanent colour that lands in two or three washes and stays.

This one screens cleaner than ours and we are not going to argue otherwise — no PPD, no resorcinol, no developer, because it is a toner rather than a dye. It deposits semi-permanent colour that builds gradually and washes out. If you want coverage that stays put, that is the difference; if you want the shortest ingredient list, this is it.

A basic-dye toning shampoo on Amorepacific's herbal Black Toning complex, with nitrophenol dyes and no oxidative system — so no PPD, no couplers, no peroxide. It builds gradually over repeated washes and rinses back out again. Ours is permanent: fewer washes to get there, and it does not wash away.
Amazon best-sellers US

Neither of us uses PPD, and Control GX goes further — no resorcinol, no peroxide, so it screens gentler than ours. The trade is what it does: it dims grey gradually over weeks and drifts back if you stop. Ours is a permanent oxidative colour that covers and holds, at the cost of a dye system that still needs a patch test.

The same oxidative format as ours, but built on PPD with Cocamide DEA and extra dye intermediates on top. We removed PPD and it did not — which, with the shorter mid/high list on our side, is most of the gap between the two scores.

PPD and resorcinol, plus thioglycolic acid and an SLES/DEA cleanser base — the busiest mid/high list of the set. Ours keeps resorcinol but drops PPD, the thioglycolate and the DEA base, which is why it screens a full point higher.
Same price, same 300ml, both permanent oxidative colour. Neither wins outright — this is the trade, stated in both directions.
Since the 2026 GDS reformulation both are PPD-free and both colour with toluene-2,5-diamine and resorcinol. A 48-hour patch test applies to both — PTD cross-reacts in people allergic to PPD. Colour lands on the first wash for both; heavy grey means a second pass either way.
GDS grades a higher share of its deck low-risk but carries more higher-risk flags across a longer ingredient list. Levero runs a shorter deck with fewer flags, and is the only one of the two in a light brown. Pick on shade and on which of those two you care about — not on PPD, which neither uses.
See GDS →No, and this is the one thing worth reading twice. PPD is genuinely off the list, but toluene-2,5-diamine has taken its place — it is the standard substitute and people allergic to PPD very often react to it as well. Patch test 48 hours before every use, and if you have reacted to a hair dye before, treat this like any other oxidative colour.
They are two different routines, not a better and a worse one. GDS, our best seller, comes as one bottle holding Part 1 (150ml) and Part 2 (150ml), pumped together and mixed in your palm, then lathered through wet hair in the shower, with six conditioning oils in the base, in Black, Brown and Dark Brown. Levero also pumps both parts into your palm, but goes onto dry or towel-dried hair, has nothing animal-derived on its declaration, and is the one with a Light Brown shade; the maker also publishes lab figures on its current formula. Both are $29.99, both have gloves in the box, and neither contains PPD — both colour with toluene-2,5-diamine, so patch test either way.
Colour lands on the first wash. How completely it covers depends on how much grey you have — the maker's own FAQ recommends two or three washes in a row to set it, then periodic top-ups as roots come through. Give it the full ten minutes on heavy or white grey.
Gloves are in the box — use them. Levero states directly that nails are a protein structure and can take colour, and recommends vinyl gloves if you are sensitive to staining. If you do get it on bare hands, wash them during the wait rather than after.
Five to ten minutes. Apply to towel-dried or dry hair rather than soaking wet hair — the colour grips better that way.
Match the shade closest to your hair now rather than the one you want, so the result reads as natural. If your grey is extensive, go one step darker for coverage and space out the washes to keep it from deepening further.
About 15 on short hair, and fewer as length increases — the maker publishes roughly 15 / 7.5 / 5 / 3.75 applications by hair length. At $29.99 that is about $2 a wash on short hair.
Both check out on the declaration. Ethanolamine does the alkalising in place of ammonia, and nothing on the list is animal-derived. Ammonia-free is about smell and scalp sting, not about whether it is a permanent dye — it still is.
We could not substantiate it. The product page advertises anti-hair-loss actives, but none of the ingredients Korea recognises for relief of hair-loss symptoms — biotin, panthenol, salicylic acid or menthol — appear on this declaration. We have left it out of our score.
Ships from Korea. After dispatch, typically 7–14 business days to the US, Canada and the UK, and 5–12 business days to Australia, Hong Kong and Singapore.
25 panels · translated from Korean by Dhaliora
These panels are the maker's own words and figures, shown as published. Our grading and comparisons are on the Our read tab.

























Imported from the maker's own Korean store and shown through Loox — not reviews written by Dhaliora customers.
9,850 Reviews analysed · 4.7 Avg. rating · 5,231 / 4,619 Naver / maker store · summarised by Dhaliora
Most mentioned
Friction
Read the frictions as fit cues. Two of them contradict the maker's own marketing and we would rather you heard it here: the pack says five minutes and reviewers overwhelmingly report ten to twenty, and the low-transfer claim does not hold for bare hands. The gloves are in the box for a reason. Scalp irritation is uncommon — about 2% of rated reviews sit at one or two stars — but it is reported, which is why the patch test is not optional.
Good fit if
Not for you if you want
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