Do 12g, 24g and 10mL look like three sizes of the same Rich Nail product? They are not. The 12g and 24g tubes are cream sizes; the 10mL bottle is a brush-on nail coat. Start with where you want to apply it and how it comes off, not the biggest pack or the strongest-sounding name.
The cream provides moisture care for nails and surrounding skin; the coat forms a physical protective layer on the nail. Both are cosmetics, not treatments for nail disease. You do not need to buy both as a set.
I’m Irene, a Taiwan-born pharmacist qualified in Japan.
Look for the container: a cream tube or a brush-on coat
The cream is named メンソレータム ハンドベール リッチネイル. The other product adds 爪補強コート to that name. Choose between 12g and 24g for the cream; the 10mL bottle is a different, brush-on format.
Cream: choose between the 12g and 24g tubes
Nail coat: 10mL is not a smaller cream
On a phone, scroll inside the table. JAN codes are official product identifiers, not measurements taken from photos.
| Check | Rich Nail cream | Rich Nail 爪補強コート |
|---|---|---|
| Japanese sales name | ロートハンドベールN | RメンソレータムGN |
| Size | 12g / 24g | 10mL |
| Japanese category | Cosmetic | Cosmetic |
| Purpose and application area | Moisture care for nail surfaces and surrounding skin | Physical coating on nail surfaces; keep off the skin |
| Format / finish | Cream | Brush-on; a natural, matte finish once dry |
| JAN code | 12g: 4987241143733 24g: 4987241149483 | 10mL: 4987241171774 |
Cream can go around the nail; keep the coat off skin
For moisture care of nails and surrounding skin: the cream
Cream: the brand directs you to wipe moisture and oil from the nail, then rub a suitable amount into the nail surface and surrounding area two or three times a day. A smooth surface is the cue that it has been rubbed in, not a test of whether a nail condition has improved.
The FAQ notes that wet work can wash the cream away and recommends reapplying afterwards and using it before bed. Do not transfer this cream routine to the brush-on coating.
For a physical coating on the nail: the brush-on product
Nail coat: clean the nail and wipe off moisture and oil. Shake the bottle, wipe excess liquid from the brush to prevent drips, apply evenly without touching the skin, and let it dry. Its protection is a physical surface coating, not treatment of nail disease.
Do not force the coating off; check before recoating
The product page gives commercial nail-polish remover as the normal removal method. The FAQ adds that, if you are reluctant to use remover, you may leave the coat to come off naturally rather than force removal. Natural flaking does not mean pulling the layer off yourself.
The FAQ suggests recoating when the edges start to peel, and recommends removing the old coat first rather than painting over remaining coating. If you choose to wait for natural flaking as described above, do not force it off just to reapply.
Applying both products to the same place at the same time is not recommended. The FAQ also describes using the cream for moisture care after removing the coat. Before applying a fresh coat, clean the nail and remove moisture and oil again. Buying both is not a requirement.
Do not cover an abnormal nail or a fingertip wound
Cream: do not apply to wounds, swellings, eczema, rashes or other abnormal areas. Stop and consult a dermatologist if redness, swelling, itching, irritation, pale patches or darkening develops during use or after subsequent sun exposure. Continuing may worsen symptoms.
Nail coat: the official warning says not to use it when the nail is abnormal or when there are wounds or similar problems on the fingertips. Stop and consult a dermatologist if a problem develops during or after use. This is distinct from the cream’s application around the nail.
Keep both products out of the eyes. If either gets in, rinse promptly with water or lukewarm water; seek eye care if a problem remains.
General advice: NHS guidance recommends seeing a doctor for an unexplained change in nail colour or shape, unexplained nail loss, or surrounding skin that becomes sore, red, swollen and warm. This is general consultation advice, not a diagnosis or evidence about these products. Do not postpone checking the cause by relying on moisture care or a covering coat.
Before buying: type, size and the limits of use
For everyday moisture care of nails and the surrounding skin, identify the 12g or 24g cream. For a physical nail coating, look for the complete name containing 爪補強コート and the 10mL size. Check application, removal and the situations in which you should not use it. If your pack differs, ask the manufacturer about that pack rather than transferring another version’s directions.
Version and scope notes
Japanese official information checked: 24 October 2026. This is a buying and label-reading guide to the two current types, not a personal trial or performance comparison. The published web precautions do not replace the full instructions on your own pack.
Some FAQs linked from the current brand page use the heading “プレミアムリッチネイル（クリーム）”. Identify the current item by its name, sales name, size and JAN above. These are currently linked official directions, not proof that every historical formulation was identical.
Image credits and sources
Image rights holder: ROHTO Pharmaceutical Co., Ltd. The cover compares old and new packaging for the two product types, using images from the first two product pages listed below. The two product pictures and two application diagrams in the article come from the official “current Rich Nail range and directions” page below, to help identify the packs and understand where to apply each product. Product pictures are complete and not to scale. Packaging claims are not additional promises of treatment or individual results.
The two product pages support specifications and precautions; the FAQs below cover application, removal and recoating. NHS guidance supports the separate general advice about nail problems, not product claims.
- Rohto: Rich Nail cream
- Rohto: Rich Nail strengthening coat
- Rohto: current Rich Nail range and directions
- Rohto FAQ: cream versus strengthening coat
- Rohto FAQ: using the cream
- Rohto FAQ: applying the coat
- Rohto FAQ: removing the coat
- Rohto FAQ: recoating over a remaining layer
- Rohto FAQ: using the two products together
- Rohto FAQ: leaving the coat on and peeling edges
- NHS: Nail problems (general advice, not product-efficacy evidence)
