Tsujimoto Market: Our Guarantees
Description
Rohto Deoco Scalp Care Shampoo 350 ml — Japanese Clay Shampoo for Scalp Odour
Overview
Deoco is Rohto's answer to a very specific Japanese concern: the change in body and scalp smell that comes with age, as sebum composition shifts and certain fatty acids oxidise. The shampoo works on it in two separate ways, and it is worth keeping them apart. White clay adsorbs oxidised sebum and residue during the wash — that is a physical mechanism and it is where the cleaning happens. The sweet floral fragrance contains lactones, the compounds associated with the scent of young skin — that is perfume, and it is where the smell comes from.
The previous version of this page ran the two together and said the product "replenishes the scalp's natural youthful scent", which reads as if it restores something your body makes. It does not. It also said 450 ml; the bottle is 350 ml. Pairs with the Deoco conditioner. See also our Japanese haircare range.
Key Benefits
- ✓ White clay (kaolin) as an adsorbent: it lifts oxidised sebum off the scalp rather than covering it
- ✓ Fine-bubble lather designed to reach the scalp between the hairs, not just coat the lengths
- ✓ Vitamin C derivative as the moisturising component — named here for the first time
- ✓ Sweet floral fragrance containing lactones, which is where the scent effect comes from, stated plainly
- ✓ Correct size on this page at last: 350 ml body, with a 370 ml refill sold separately in Japan
- ✓ Shipped from our base in Kobe, Japan with tracking, in the Japanese domestic packaging
Product Details
| Brand | Deoco |
|---|---|
| Manufacturer | Rohto Pharmaceutical (Deoco) |
| Country of origin | Japan |
| Product type | Shampoo (rinse-off) |
| Volume / count | 350 ml (refill 370 ml sold separately) |
| Scent | Sweet floral |
| JAN code | See package label |
| Regulatory status | Cosmetic (not a quasi-drug) |
Who Is This For?
- Adults who notice their scalp smells different by the end of the day than it used to
- People whose hair goes flat and greasy at the roots quickly
- Anyone who wears hats, helmets or a hijab for long stretches and wants the scalp cleaned properly
- Users who like an openly perfumed shampoo — the scent is the point, not a side effect
- Not for: anyone sensitive to fragrance, since the fragrance is a core part of this formula
How to Use
- Wet the hair and scalp fully with warm water before the shampoo goes near it.
- Take an appropriate amount and lather in the hands first — the fine bubbles matter here.
- Massage the scalp with the fingertips, working from the hairline to the nape, for a minute or two.
- If your scalp is very oily, a short second wash does more than one long one.
- Rinse thoroughly, then follow with the Deoco conditioner or your usual one.
Frequency: Daily, or as often as you wash
Full Ingredients
Named components: white clay (kaolin), the adsorbent; a vitamin C derivative as the moisturising ingredient; a lactone-containing fragrance. Rohto describes the wash system as fine bubbles plus an ionic polymer working with the clay. Silicone-free, per the label.
Rohto does not publish the complete INCI for Deoco online. What is above is what the manufacturer discloses; the full list is printed on the bottle you receive, and we will translate it for you.
Cautions
- Strongly fragranced by design — not a good choice if you are sensitive to perfume in hair products.
- Avoid the eyes; rinse with plenty of water on contact.
- Stop and consult a doctor if the scalp reddens, itches or flakes.
- A change in scalp or body odour that is sudden, strong or comes with sores is worth a doctor's opinion rather than a shampoo.
- Keep out of reach of children. Store away from direct sunlight and high temperatures.
Package Contents
1 × pump bottle, 350 ml. Japanese domestic packaging with Japanese-language labelling.
Shipping & Store Notes
- Ships directly from Japan
- Processing time: 2–6 business days
- Tracking number provided after dispatch
- Import duties and taxes may apply depending on destination country
- Opened cosmetics cannot be returned for hygiene and safety reasons
Authenticity Guarantee
Every product at Tsujimoto Market is sourced directly from Japan and verified for authenticity. We never sell fakes or grey-market goods. Each order is carefully packed in Kobe, Japan and dispatched with full tracking.
FAQ
What is the "lactone" in Deoco actually doing?
It is perfume, and Rohto is straightforward about that on the Japanese packaging even where the English-language copy around this product usually is not. Lactones are a family of sweet-smelling compounds that Japanese research associated with the body odour of women in their teens and twenties, and which become scarcer with age. Deoco's fragrance contains them. So the product does add that smell to your hair — it does not cause your scalp to start making it again. The odour-control side of the formula is a separate mechanism: white clay adsorbs oxidised sebum during the wash.
Is "age-related scalp odour" a real thing or a marketing category?
Both, and it is worth separating them. The underlying chemistry is real and well documented in Japan: sebum composition changes with age, and certain fatty acids oxidise into compounds — 2-nonenal is the one usually named — with a distinctive smell that concentrates at the scalp and behind the ears, because that is where sebum is densest. What is marketing is the implication that a shampoo reverses it. This one washes the oxidised sebum off and leaves a scent behind, which is a real and modest thing to do, and it needs repeating every wash.
Do I have to buy the matching shampoo and treatment together?
No — each works on its own, and the pairing is a marketing structure as much as a formulation one. What is true is narrower: a shampoo that leaves the cuticle slightly acidified gives the treatment that follows a marginally better surface to sit on, and the two share a fragrance so they do not fight each other in the shower. If your budget stretches to one of the pair, buy the treatment: it stays on the hair, while shampoo is on the head for ninety seconds and then goes down the drain.
The packaging is in Japanese — how do I know what I am using?
The carton and bottle carry Japanese-language labelling, because this is stock made for the Japanese domestic market. Where an ingredient list appears on this page, it is translated from that labelling or from the manufacturer's own published data; where the manufacturer does not publish one, the ingredients section says so rather than filling the gap. Either way, send us a photo of anything unclear on the box after delivery and we will translate it, and ask us before ordering if you need the full label list first.
Will I pay customs duty or import VAT?
That depends on your country and on the declared value of the parcel, not on us. We ship from Japan with a correct customs declaration and full tracking; any duty or import VAT your country charges is collected by your local carrier or customs office on delivery. Check your national de-minimis threshold before ordering if you want to avoid a surprise.
