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Japanese Marine Collagen

Your daily radiance
ritual.

10,000mg of Japanese marine collagen peptides in every stick pack. Four botanical flavors. One ritual that transforms your skin from within.

10,000mg
Per serving
93%
Absorption
7 days
First results
Japanese Marine Collagen
Clinically Dosed
Zero Sugar
Free US & UK Shipping
30-Day Guarantee

Four botanicals. One ritual.

Every stick pack delivers 10,000mg of Japanese marine collagen peptides with Vitamin C, Hyaluronic Acid, and Ceramides.

Signature
SIGNATURE

Yuzu & Honey

Bright Japanese yuzu citrus softened with raw Manuka honey. Our signature — the one everyone starts with.

One-time$45
Subscribe & save$36/mo
FLORAL

Sakura

Delicate cherry blossom with a whisper of white peach. Light, ethereal, and unmistakably Japanese.

One-time$45
Subscribe & save$36/mo
BOTANICAL

Ceremonial Matcha

Stone-ground Uji matcha meets collagen. Antioxidant-rich, earthy, and deeply nourishing.

One-time$45
Subscribe & save$36/mo
UNFLAVOURED

Pure

Nothing but Japanese marine collagen in its purest form. Add to any drink without changing the taste.

One-time$42
Subscribe & save$34/mo

Not all collagen is created equal.

Three things separate effective collagen from everything else: source, dose, and bioavailability. We optimized all three.

10,000mg
Marine collagen per serving
93%
Bioavailability rate
3,000Da
Low molecular weight
Type I & III
Collagen types for skin

Type I & III

Japanese Marine Source

Wild-caught marine collagen from Japanese waters, supplied by Nitta Gelatin. Smaller peptides mean 3x faster absorption than bovine alternatives.

10,000mg

Clinical Dose

The dose backed by research. Most brands use 2,000-5,000mg. We use the amount that clinical studies show actually moves the needle for skin, hair, and nails.

93%

Maximum Absorption

Low molecular weight (3,000 Daltons) for 93% bioavailability. Enhanced with Vitamin C for collagen synthesis and Ceramides for skin barrier support.

Under a minute. Every morning.

01

Tear

Open one stick pack each morning.

Each individually sealed pack preserves freshness and potency.

02

Mix

Stir into 200ml of cold water.

Dissolves in seconds. No clumps, no grit, no aftertaste.

03

Glow

See results in as little as 7 days.

Hydration first. Then firmness, clarity, and radiance that builds over time.

In their own words.

Two weeks in and my dermatologist asked what I changed. It's just Kira. Every single morning.

Emily R.

New York, NY

Yuzu & Honey

I've tried high-end collagen brands twice the price. Nothing has worked this fast or tasted this good.

Charlotte H.

London, UK

Sakura

The matcha flavor is incredible — it replaced my morning latte and my skin has never looked better.

Mia T.

Los Angeles, CA

Ceremonial Matcha

Choose your commitment.

The longer you commit, the more you save. Results compound over time — most women see the best results after 60-90 days.

STARTER

The Ritual

1 box (30 stick packs)

$45
MOST POPULAR

The Commitment

2 boxes (60 stick packs)

$79Save 12%
BEST VALUE

The Transformation

3 boxes (90 stick packs)

$109Save 19%
Subscribe & Save 20%
$36/month
Free shippingCancel anytimeSwap flavors monthly

Born from Japanese beauty wisdom.

KIRA means radiance in Japanese. It was born from a simple frustration: every collagen brand on the market was either underdosed, poorly sourced, or tasted terrible. Japan has been using marine collagen for over two decades — yet Western brands were ignoring everything Japanese beauty scientists had learned.

We partnered with Japanese collagen producers to source the highest-grade marine collagen peptides available — Type I & III, low molecular weight, 93% bioavailability. Then we formulated it with botanicals that honor Japanese beauty traditions: yuzu, sakura, ceremonial matcha. The result is a daily ritual that transforms your skin from within.

Radiance is not something you apply. It is something you cultivate.

Everything you need to know.

Three things: source, dose, and absorption. Every stick pack delivers 10,000mg of hydrolyzed Japanese marine collagen peptides — with 93% bioavailability. Most competitors use 2,000-5,000mg of bovine collagen with far lower absorption rates. Our collagen is sourced from Nitta Gelatin, one of Japan's most respected collagen producers.

Tear open one stick pack and mix into 200ml of cold water. Stir for 10 seconds and drink. Takes under a minute. For best results, take every morning on an empty stomach.

Most women notice improved skin hydration within 7-10 days. Visible improvements in firmness, texture, and glow typically appear within 14-21 days of daily use. Hair and nail benefits usually become noticeable after 4-6 weeks.

Type I and Type III hydrolyzed marine collagen peptides — the two types that make up 90% of your skin's collagen structure. Sustainably sourced from Japanese wild-caught fish. Low molecular weight (3,000 Daltons) for maximum absorption.

Zero added sugar. Under 15 calories per stick pack. The flavors come entirely from natural botanical extracts — real yuzu, sakura, and ceremonial matcha. No artificial sweeteners, ever.

Absolutely. Cold water gives you the cleanest taste. But it dissolves beautifully in smoothies, juice, iced coffee, or sparkling water. The Pure variant is completely tasteless — add it to anything. Just avoid boiling liquids, as extreme heat can reduce peptide effectiveness.

Subscribe and save 20% on every order with free shipping. Delivered monthly to your door. Skip a month, swap flavors, or cancel anytime — no commitment, no questions asked. Most of our customers are subscribers because the results compound over time.

We always recommend consulting your doctor before starting any supplement during pregnancy or breastfeeding. Our formula contains only natural, food-grade ingredients with no artificial additives.

Yes. We ship to the US, UK, Canada, Australia, UAE, and most of Europe. US and UK orders ship free on subscriptions. International orders typically arrive within 5-10 business days.

We offer a 30-day satisfaction guarantee. If you're not seeing results or you're not happy for any reason, contact us for a full refund — no questions asked. We believe in our product that much.

Your future skin is a ritual away.

10,000mg Japanese marine collagen. Four botanical flavors. One daily stick pack. Radiance that builds from within.