JUNSUI SaiseiWhere the surface returns to itself.
Saisei holds salmon-derived PDRN dry in four amber-pale lyophilised ampoules, scaffolded by centella fractions, niacinamide and panthenol. Four pure diluent ampoules complete the kit. Built for the days after a gentle exfoliation or a facial. Kintsugi for skin: not erasing what was, but honouring the recovery.
PDRN's wound-healing literature is strong; the aesthetic data is rapidly maturing. Saisei supports the skin's repair environment — it does not rewrite cells.
Lyophilised PDRN scaffolded by centella, niacinamide and madecassoside — warm pale amber cake.
Pure low-shear diluent, pH 7.0 — preserves PDRN architecture as the cake dissolves.
One dry + one wet = one session. Activated at the moment of use. Spent within the hour. The molecule never waits.
The kit, observed quietly.
The ampoule opened. The box that holds eight. A hand that knows the ritual. The serum at the moment of pour.
Scientific Detail.
- Active (dry)
- PDRN 2.0mg/ml · Centella Asiatica · Niacinamide 2% · HA 0.8% · Panthenol 2% · Madecassoside 0.2% — lyophilised
- Diluent (wet)
- Low-shear hydrogel-compatible diluent, pH 7.0 — 2.0 ml per ampoule
- Format
- 8-ampoule reconstitution kit · 4 dry + 4 wet · 4 sessions
- In the box
- 4 lyophilised active ampoules · 4 diluent ampoules · ritual card
- Ampoule closure
- Butyl septum · champagne aluminum crimp · gold foil disc
- Purity
- Cleanroom-filled · lyophilised under nitrogen · pure diluent
- Shelf life
- 36 months sealed · store 2–8°C · spent within the hour once reconstituted
Six unhurried steps.
- 01
Prepare — best the day after a gentle barrier reset. Lay out one dry ampoule, one wet ampoule, and a small clean dish on a calm surface.
- 02
Unseal — lift the gold foil disc from one dry ampoule and one wet ampoule. The butyl septum stays in place.
- 03
Pour the diluent — gently pour the contents of the wet ampoule into the dry ampoule, running the liquid down the inner wall.
- 04
Awaken — swirl the dry ampoule for thirty seconds. The amber lyophilisate dissolves into a clear, faintly warm pour.
- 05
Apply — dispense 3–5 drops onto your fingertips. Press gently onto calmed skin with light, upward strokes. Pat until absorbed.
- 06
Rest — allow the serum to settle for two minutes before applying moisturiser or oil. Use within the hour of reconstitution.
Activated at the moment of use. Spent within the hour. The molecule never waits.
The kit ships as eight sealed ampoules and a ritual card. The pure tri-pin 34G caps and luer-lock syringes are sold separately on theMicro-Channel Delivery page.
The JUNSUI tri-pin cartridge.
The recommended companion to JUNSUI Saisei — three cosmetic-grade pins, copper-tinted housing, and a universal luer-lock base that mounts onto the syringe carrying your reconstituted serum. Sold separately as a pure ten-cap refill box.
- · 34G × 3-pin pure tip
- · Universal luer-lock base · fits standard syringes
- · EO sterilized · single-use
- · Available on the Topical Ritual page
The molecules inside JUNSUI Saisei.
Before you buy.
Pour the diluent — gently pour the contents of the wet ampoule into the dry ampoule, running the liquid down the inner wall. Awaken — swirl the dry ampoule for thirty seconds. The amber lyophilisate dissolves into a clear, faintly warm pour. Apply — dispense 3–5 drops onto your fingertips. Press gently onto calmed skin with light, upward strokes. Pat until absorbed.
An 8-ampoule reconstitution kit — 4 lyophilised active ampoules and 4 pure diluent ampoules, totalling 4 sessions. Lyophilised PDRN scaffolded by centella, niacinamide and madecassoside — warm pale amber cake.
36 months sealed · store 2–8°C · spent within the hour once reconstituted
PDRN's wound-healing literature is strong; the aesthetic data is rapidly maturing. Saisei supports the skin's repair environment — it does not rewrite cells. It's typically introduced the day after a gentle barrier reset or exfoliation — onto calmed, cleansed skin.
Yes. Once reconstituted, the serum is applied with clean fingertips as part of your evening skincare ritual. Dispense 3–5 drops and press gently onto cleansed face and neck. For topical cosmetic use only — not for injection.
Kits ship from Japan via tracked courier in protective insulated packaging. Standard delivery is 3–7 business days to the US, UK, EU, Canada and Australia. Shipping is a $25 USD flat rate, free for orders over $250.