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Description
Ryu Spa Kumi Serum, 30 ml — Moisturizing Serum with Fermented Extracts and Collagen
Overview
Ryu Spa is a Japanese skincare brand inspired by the natural wealth of Okinawa. Its formulas use local plant extracts and marine ingredients, built around deep sea water drawn from 612 meters off Kumejima Island — water that circulated underground for over 2,000 years before reaching the surface.
The Kumi ("酌み") line was created to restore the skin's natural vitality using two fermented plant extracts alongside collagen, hyaluronic acid and ceramides. It has a rich but light gel texture with a woody-herbal fragrance.
Explore more Japanese serums and anti-aging skincare.
Key Benefits
- ✓ Intensively hydrates using two types of fermented plant extracts
- ✓ Contains fermented botan-bofu (longevity herb) with marine lactobacteria from amamo seaweed harvested off Kumejima
- ✓ Fermented aloe vera juice helps soften skin and soothe irritation
- ✓ Three types of hyaluronic acid plus collagen (including atelocollagen and hydrolyzed collagen) for hydration and firmness
- ✓ Elastin, ceramides and glucosyl ceramide support the skin's protective barrier
- ✓ Suitable for dry, sensitive skin prone to loss of firmness
Product Details
| Brand | Ryu Spa |
|---|---|
| Country of origin | Japan (Okinawa-inspired formula) |
| Product type | Face serum |
| Format | Gel serum |
| Volume | 30 ml |
| Vendor / Maker | Ryu Spa |
| JAN code | See package |
| Quasi-drug status | [TODO: confirm with supplier — not stated on the source listing] |
Who Is This For?
- Those concerned about dryness and loss of skin firmness.
- Anyone wanting to boost hydration and nourishment with fermented, plant-based ingredients.
- People looking for anti-aging care with a light gel texture that layers easily.
How to Use
- After applying lotion/toner, dispense about 2 pumps (approx. 1 ml) onto your palms.
- Distribute gently and evenly over the face.
- Pay extra attention to areas that need more care.
- For enhanced effect, an extra layer can be applied to particularly dry areas.
Frequency: Use after lotion, morning and/or evening
Full Ingredients
Water, propanediol, PEG/PPG/polybutylene glycol, glycerin, butylene glycol, bisethoxy dimethicone copolymer, fermented botan-bofu extract, fermented aloe vera extract, hyaluronic acid (multiple types), atelocollagen, hydrolyzed collagen, elastin, ceramides, glucosyl ceramide, turmeric extract, carrot extract, mugwort extract, artichoke extract. [Full INCI order as listed by the manufacturer; exact percentages not disclosed.]
Cautions
- For external use only.
- Patch-test on a small area before first use, especially if your skin is sensitive.
- Discontinue use and consult a specialist if redness, itching or irritation occurs.
- Avoid contact with the eyes; rinse thoroughly with water if it occurs.
- Keep out of the reach of children.
- Store away from direct sunlight and extreme heat.
Package Contents
1 × Ryu Spa Kumi Serum, 30 ml
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 and supplements 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 does the deep sea water from Kumejima add to this serum?
According to the brand, the deep sea water used across the Ryu Spa Kumi line is drawn from 612 meters off Kumejima Island and prized for its purity and mineral balance; it is part of the formula base alongside the fermented plant extracts.
Is this serum suitable for sensitive skin?
It is formulated for dry, sensitive skin prone to firmness loss, but as with any new skincare product we recommend a patch test 24 hours before first full use.
How does the Kumi Serum differ from the Kumi Lotion and Kumi Cleansing Balm?
All three share the Kumi fermented-extract base, but the Serum is a concentrated gel step used after lotion, the Lotion is the earlier hydrating/toning step, and the Cleansing Balm is a makeup-removing balm used at the start of your routine.
Is this the authentic Japanese product?
Yes. We source directly from Japan and ship every order from our Kobe warehouse with full tracking.
Will customs duties apply to my order?
This depends on your destination country. Import duties and taxes, if any, are set by local customs and are not included in our price.
