ULULIS Hair Oil: Which Line Is Right for Your Hair?
Aqua · PINKme · Kirameki · Black Serum
ULULIS makes four distinct hair oil lines. The names — Aqua, PINKme, Kirameki, Premium Black Serum — tell you almost nothing unless you already know the brand. Each targets a different hair concern with a different core formula, and picking the wrong one means paying for actives your hair doesn't need.
This guide maps every line by hair type, finish, and the problem it actually solves — so you can buy once and get it right.
What Makes ULULIS Different
Most hair oils on the global market use a silicone base — cyclopentasiloxane or dimethicone — as the primary active. Silicone smooths the surface of the hair shaft instantly and creates visible shine. The problem: it doesn't repair anything. It deposits on the hair, washes off, and you start again. Some silicones accumulate over time and cause build-up.
ULULIS's philosophy is "Water Conc" — water-soluble concentrate. The oils absorb into the hair shaft rather than coating it. They work cumulatively over time, not just on application day. The premium lines (particularly Black Serum) include repair actives — PDRN, Tosurea, exosomes — that are genuinely structurally active rather than cosmetically smoothing.
The Four Lines — At a Glance
The entry-level everyday moisturiser. 90%+ hydration components with hyaluronic acid, ceramides, and water-soluble collagen. Designed to maintain the ideal 15% moisture content in hair. Best for hair that's mildly dry or just wants daily maintenance.
Hair concern: Dryness, lack of shine. Not for structural damage.
The frizz and wave control specialist. Formulated for wavy, frizzy, or "cat hair" — hair that puffs up in humidity and resists smoothing. Contains a water-repellent straight ingredient and honey-based swell care that manages the hair's response to moisture in the air.
Hair concern: Frizz, flyaways, humidity puffing. Good for medium to coarse hair.
The shine and gloss specialist. Uses hydrolysed silk, conchiolin protein (pearl), and AHA to smooth the cuticle and maximise light reflection. If your main complaint is dull, lifeless hair that lacks the healthy glass-hair look, Kirameki is the targeted pick.
Hair concern: Dullness, lack of reflectivity, matte or flat-looking hair.
The structural repair line. 95%+ active composition with PDRN, Tosurea bond repair, 10× concentrated keratin and collagen water, exosomes, and Black Diamond Truffle. For hair with real damage — bleached, permed, or texture-changed by ageing. Rebuilds from inside the shaft, not just the surface.
Hair concern: Real damage, breakage, texture change, frizz from structural degradation.
Shop Black Serum on TokyoShelf →Full Comparison Table
| Feature | Aqua | PINKme | Kirameki | Black Serum (Premium) |
|---|---|---|---|---|
| Primary concern | Daily dryness | Frizz / waves | Dullness / shine | Structural damage |
| Active concentration | 90%+ | 90%+ | 90%+ | 95%+ |
| Signature actives | HA, ceramides, collagen | Honey swell care, water-repellent straight ingredient | Silk, pearl protein, AHA | PDRN, Tosurea, exosomes, 10× collagen & keratin |
| Finish | Soft, natural | Smooth, controlled | High-gloss, reflective | Silky, subtle gloss |
| Best hair type | Fine to normal | Wavy, coarse, frizzy | Any, esp. colour-treated | Damaged, bleached, chemically treated |
| Works cumulatively | Yes | Yes | Yes | Yes — most pronounced over time |
| Weight / feel | Lightest | Light-medium | Light | Light-medium (serum-like) |
| Fine hair safe | ✓ Yes | ✓ Yes | ✓ Yes | ✓ Yes (start with 1–2 pumps) |
| Structural repair | Surface only | Surface only | Cuticle smoothing | Inside the shaft (PDRN + Tosurea) |
| Scent character | Fresh / aquatic | Soft floral (apple-berry) | Light floral | Black Fleur — dark floral, sophisticated |
| Available on TokyoShelf | — | — | — | ✓ Shop now |
Which Line by Hair Type & Concern
| Your Hair Situation | Recommended Line | Why |
|---|---|---|
| Healthy hair, just wants daily moisture | Aqua | Lightest formula, maintains ideal moisture content without excess weight |
| Frizzy hair that puffs up in humidity | PINKme | Water-repellent ingredient controls moisture uptake from the air |
| Dull, flat hair that lacks shine | Kirameki | Pearl protein and AHA maximise cuticle smoothness and light reflection |
| Bleached or heavily colour-treated | Black Serum | PDRN and Tosurea rebuild internal structure damaged by chemical processing |
| Permed or chemically straightened | Black Serum | Chemical treatment breaks internal bonds — Tosurea specifically repairs these |
| Hair that's changed texture with age | Black Serum | Structural degradation from ageing responds to PDRN cellular repair |
| Frizzy AND damaged (bleached + frizzy) | Black Serum | Addresses the underlying damage causing frizz, not just the surface symptom |
| Fine hair — worried about weight | Aqua or Black Serum (1 pump) | Both absorb cleanly; start with 1 pump to avoid any heaviness |
| Very coarse, thick, resistant hair | PINKme or Black Serum | PINKme for frizz management; Black Serum if there's damage alongside thickness |
Quick Decision Guide
Shop the Black Serum — Currently on TokyoShelf
Of the four ULULIS lines, the Premium Black Serum is the only one currently stocked by TokyoShelf. It's also the newest and least available line outside Japan — launched early 2026, it's absent from most Western-facing Japanese beauty stores.
ULULIS Premium Water Conc. Black Serum Hair Oil 100ml
Japan-domestic formula, freshly sourced from Matsumotokiyoshi Tokyo. PDRN + Tosurea + 10× collagen. Ships direct from Japan.
Shop Now on TokyoShelf →Also explore the full Hair Oils & Serums collection on TokyoShelf — including the &honey Deep Moist Hair Oil, Orbis Essence In Hair Milk, and Oshima Tsubaki Camellia Oil, all sourced directly from Japan.