“Crushed Tonic is the collagen I ensure my patients look out for.”
Dr. Tess Mauricio, MD · Board-Certified DermatologistSoft, nutty, custardy. The collagen that tastes like dessert.
The Korean corner-store banana milk you grew up on.
Collagen Jelly is the Korean jelly stick format, carrying 2,500 mg of hydrolyzed marine collagen. Tear, squeeze, done — no powders, no mixing.
2,500 mg of hydrolyzed marine collagen. Tear, squeeze, done.
No pills. No grit. No chalk.
I've never been so excited about something that's good for me."
5g a day. 30 days. Most customers notice these four shifts before the month is over— and the people around them notice first.
One stick a day is the whole routine. Start with a box and let your skin, hair and nails do the talking.
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Most collagen brands rely on oversized servings. We rely on smaller peptides. Smaller peptides are more easily absorbed, with research showing benefits from as little as 2.5g.* Still, every serving delivers a full 5g— about 2× the clinically studied amount— with no fillers, no fluff, and no oversized scoops.
*Based on clinical studies of hydrolyzed collagen peptides
*Consumer Perception Study, 100 people, ages 18–31
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Day 1Clinically formulated collagen targets visible skin conditions from the inside out.
Skin elasticity meters, wrinkle-depth imaging, dermal hydration probes. The boring science, done right.
Method: Skin elasticity measured by cutometer — quantifying the time and quality of skin's ability to return to its original state after stretching.
Method: Wrinkle shadows measured via high-resolution facial imaging. Light reflection across the skin surface tracked weekly to assess texture and depth.
Method: Perioral and Crow's feet wrinkles studied on 95 healthy women aged 55–60. Skin complexion, elasticity, and wrinkle severity scored weekly.
Method: Skin deformation under controlled mechanical stress measured alongside the time required for the skin to return to its original shape.
Method: Hair tensile strength and growth rate measured monthly using digital trichoscopy. Nail growth and brittleness scored independently.
Most people hate collagen, and never try it again. If you're one of them, give us one final chance before you knock on collagen forever.
Above 5,000 Daltons, the molecules are too large to cross the gut lining. Peptide size decides whether the collagen reaches your skin at all.
Cheap collagen carries the supply chain with it— heavy metals from polluted oceans, hormones from feedlot cattle, fillers and gums to mask cheap inputs.
Collagen only works if you drink it daily— and you only drink it daily if you actually want to.
What started in one kitchen now happens in 100,000.
Sally Olivia Kim had a kitchen accident in her twenties. A burn bad enough to change her relationship with her skin forever. Her dermatologists told her to drink collagen daily— so she tried every brand on the market, and every single one tasted like fish, chalk, or punishment.
So she flew to Korea. Seven years with Korean labs, flavor scientists, and board-certified dermatologists to build a collagen that didn't taste like medicine. The Korean café drinks she grew up on — banana milk, strawberry milk, matcha — became the inspiration for every flavor.
She wrote a book about everything she learned. The Collagen Glow, published by W. W. Norton, is in bookstores now. And the cup she built for herself? 100,000 women now drink it in their kitchens before anyone else is awake.
Seven years of research with Korean labs and dermatologists, distilled into a practical guide to ingestible collagen — what works, what doesn't, and how to build a ritual you'll actually keep.
Most customers notice improved hydration within 2–4 weeks, with visible changes to fine lines and elasticity by week 8. Hair and nail benefits typically appear around weeks 6–10. Consistency is key — one drink daily.
Yes — that's the whole point. Each flavor is built around a nostalgic Korean café drink, with zero fishy aftertaste and 0 to 3g of sugar. 1 in 2 customers repurchase, the highest rate in the category.
Mix one tablespoon into 2 tablespoons of water until dissolved, then add a cup of your favorite milk over ice. Or blend directly into smoothies, coffee, or matcha. It dissolves clean with no grit.
Marine is our premium, beauty-forward option (mostly Type I collagen, ~4,000 Daltons). Bovine is broader-spectrum (Type I & III) for skin, hair, nails, and joints. Both are Halal and Kosher certified.
Every batch is third-party tested for heavy metals, purity, dissolvability, and absorption. A Certificate of Analysis is available for each batch, and our collagen is traceable down to the exact fish.
Subscribe and save 25% on your first month, then 15% off ongoing. Shipping is free, and you can skip, swap flavors, or pause anytime from your account. No commitment.
We offer a 30-day money-back guarantee. If you don't love your first bag, reach out and we'll make it right — no questions asked.
Our collagen is clean and free of fillers, but as with any supplement, we recommend consulting your doctor before use if you are pregnant or nursing.
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