Questions, answered.

Many brands rely on 10g+ servings padded with fillers to look more impressive on the label. Ours works differently: our peptides are so bioavailable they've been clinically studied from just 2.5g.

We include a full 5g per serving — double the clinically studied amount — so you get real results without the unnecessary bulk or fillers. More powder isn't more benefit; better-absorbed collagen is.

Not exactly — it's one of those half-true internet facts. Your body doesn't switch collagen off at 25; it simply starts making a little less, declining roughly 1% a year from your mid-twenties onward. That gradual loss is a big part of what drives thinner skin, fine lines, dark circles and other visible signs of aging. The idea behind a daily dose is just to top up what naturally slows, so your skin, hair and nails keep their bounce.

Marine collagen is hydrolyzed peptides from wild-caught cod — lighter and lower molecular weight, so it absorbs fast and tastes exceptionally clean. It's the base of our signature milks, fully traceable from source to batch and rigorously third-party tested for zero heavy metals or fillers.

Bovine collagen is Types I & III from grass-fed cattle in Brazil — just as effective, with a slightly richer body. It's premium grade, fully traceable and free from growth hormones, antibiotics, BSE, TSE, ethylene oxide, irradiation, nitrosamines, and melamine — and, like everything we make, manufactured with love in Los Angeles, USA.

Both rebuild the same skin, hair and nail proteins — the choice comes down to taste and dietary preference. Each flavor lists its exact source right on the pack.

Hydrolyzed means the collagen has been broken down into tiny peptides — small enough to actually absorb into your bloodstream and get put to work. Whole collagen is too big; your body can't use it efficiently.

Ours are patented, low-molecular-weight peptides studied specifically for absorption, which is a big part of why it works and why it tastes clean instead of fishy.

True collagen only comes from animals, so a genuinely vegan collagen doesn't exist — anything sold that way is really an amino-acid blend that supports your own collagen production rather than being collagen itself.

The key player there is glycine — the amino acid that makes up roughly a third of collagen and gives your body the raw material to build its own. Glycine is also loved for supporting restful sleep, calm, and a clearer-looking complexion. Our Amino Milk is a glycine-fortified blend made for exactly that (it's vegetarian — it does contain milk, so not strictly vegan). And if you eat fish, our wild-caught marine milks are the cleanest-tasting way in.

Yes — when it's the right kind. Only hydrolyzed collagen peptides, like ours, are broken down small enough for your body to absorb and use. In clinical research, our marine-collagen matrix boosted skin hydration by +28% in 30 days, with continued studies showing improvements in elasticity over time.

It isn't instant like a facial — it's a daily habit that compounds. Consistency is the whole game.

Collagen is the most abundant protein in your body — the scaffolding that keeps skin firm and bouncy, hair and nails strong, and joints cushioned. Your body makes plenty of it in your twenties, then production drops roughly 1% a year after 25. A daily dose helps replace what time quietly takes away.

We make it in three forms, so you can pick what fits your body and diet:

• Marine — wild-caught fish, the lightest and fastest-absorbing, with the cleanest taste. The base of our signature milks.
• Bovine — grass-fed cattle, rich and effective and a little more budget-friendly.
• Glycine-fortified (Amino Milk) — our milk blend boosted with extra glycine, the amino acid your body uses to make its own collagen, for clearer skin and better sleep.

Every one is hydrolyzed into tiny peptides for absorption — the same skin, hair and nail building blocks, just sourced the way you prefer.

Most collagen fails for one reason: it tastes like the sea. Ours doesn't. We use patented, low-molecular-weight peptides with roughly double the absorption of ordinary collagen, clinically proven to boost skin hydration by +28% in 30 days, and third-party tested for zero metals, toxins and fillers.

It's the result of seven years of Korean lab development — now stocked everywhere from Sephora and Nordstrom to Anthropologie and Erewhon — blended into nostalgic Korean-café flavors that make your daily glow ritual something you actually look forward to. This is ingestible skincare, not a chalky scoop you dread.

Collagen is a major component of the connective tissue that cushions your joints, so many people use it for everyday comfort and mobility. Joint benefits tend to show up later than skin ones — think the 4–6 month mark with daily use.

Yes. By supporting the deeper dermal layer, collagen builds density and hydration, so lines look softer and skin looks plumper. Think of it as skincare that starts beneath the surface, working alongside your topicals rather than instead of them.

It can — it depends on the cause. A lot of under-eye darkness comes from thin, delicate skin that lets the vessels beneath show through. Collagen supports the density and firmness of that skin, so with consistent daily use many people find the area looks smoother and less shadowed over time. It won't change circles that come from pigment, genetics or a rough night's sleep — but for the thinning kind, it works from the inside out.

Collagen isn't an acne treatment — it won't clear an active breakout, and we'd never promise that. What it can do is support your skin barrier and its natural repair process, which many people find helps post-breakout marks and texture fade a little faster and keeps skin looking calmer and more even. Think support for healing and resilience, not a spot treatment.

There's real research here: bioavailable collagen peptides have been clinically studied for improving the appearance of cellulite by strengthening the skin's dermal structure and the connective tissue around it. It isn't an overnight fix and it won't erase it entirely, but with daily use over a few months many people notice smoother-looking skin. As always, consistency is what makes the difference.

It can. Collagen contains glycine and glutamine, amino acids that support your intestinal lining. Many people notice they feel less bloated and more comfortable after consistent daily use.

It supports it. Collagen supplies the amino acids your body uses to build keratin — the main protein in hair. With consistent use, many people report stronger, shinier strands and less shedding over time. Our Keratin Booster is built for exactly this.

Most people notice smoother skin and stronger nails around 6–8 weeks, fuller-feeling hair by 3 months, and better joint comfort around 4–6 months. Collagen works from the inside out — patience pays off, and daily use is what gets you there.

Daily collagen supports your whole "structure" from the inside out. Most people are after:

• Skin — hydration and bounce; clinically +28% hydration in 30 days
• Hair — stronger, shinier strands and less shedding over time
• Nails — harder, less brittle, fewer breaks
• Joints — cushioning and everyday comfort
• Gut — glycine and glutamine to support your gut lining

It's a compounding habit — the benefits build the longer you're consistent.

Nothing harmful — but you'll gradually lose the glow, bounce and comfort you've built. Your body naturally makes less collagen every year after 25, so a daily habit is really about staying ahead of that curve rather than catching up later.

Nails are one of the first places people notice a difference. Because collagen provides the building blocks for the keratin in your nails, consistent daily use tends to mean harder, less brittle nails and fewer breaks — usually within a couple of months.

In our collagen, none. No fillers, no artificial sweeteners, no artificial colors — just hydrolyzed peptides, real flavor and a touch of allulose, third-party tested for zero metals and toxins. Every gram is doing something for your skin, hair or body.

No. We've kept the formula focused on what's clinically studied — our patented collagen peptides — rather than padding the label. Crushed Tonic no longer contains biotin or probiotics; it's a deliberately clean, short ingredient list.

Our collagen is never sweetened artificially — every flavor lands somewhere between 0 and 3g of sugar, done three ways so you can pick your level:

The one exception is our hydration electrolytes (Grapefruit Glow), which use just a trace of sucralose. Exact grams for every flavor are on its nutrition panel.

Each serving is about 5 g of protein and ranges from 0 to 40 calories depending on the flavor — the zero-sugar purist flavors sit near 0–20, the creamy milks up to about 40. No added fat, and little to no sugar. Exact numbers are on each flavor's nutrition panel.

Collagen is naturally gluten-free and works for keto and paleo — protein with virtually no carbs and a zero-glycemic sweetener. Plenty of flavors are fully dairy-free too (all our purist flavors, Chocolate Milk, Watermelon Juice, the electrolytes and broth); the creamy milks are the ones with dairy. One gluten note: our Umami Broth carries a trace from soy sauce. You'll find the full breakdown in the "What about allergens?" answer.

We label every flavor clearly. Here's the overview:

• Fish — our marine flavors are made with fish-derived collagen (wild-caught cod and veterinary-inspected tilapia). Our bovine flavors use grass-fed collagen and contain no fish.
• Dairy-free — Matcha, Coffee, Hojicha, Lucuma, Turmeric, Unflavored, Chocolate Milk, Watermelon Juice, our hydration electrolytes and Umami Broth. If a flavor isn't on this list, assume it contains dairy — that's our creamy milk lineup.
• Soy & gluten — our Umami Korean Broth is made with soy sauce, which adds a trace of soy and gluten.

Our collagen itself is always free from artificial sweeteners, colors and fillers — sweetened with just a little real sugar or allulose, depending on the flavor. Our hydration electrolytes and collagen jelly are formulated differently and can include erythritol, stevia, or — in the electrolytes — a trace of sucralose.

If you have a specific allergy, check the full ingredient list on your flavor's page — each one is labeled — and reach out anytime and we'll confirm.

Short, clean ingredient lists — that's the point. Every stick is built on:

• 5g hydrolyzed collagen peptides — wild-caught marine or grass-fed bovine, depending on the flavor. Roughly double the absorption of ordinary collagen, and no artificial sweeteners, colors or fillers.

See the full ingredient panel for every flavor on our ingredients page →

There's no single "right" age — but your body's own collagen starts to taper in your mid-twenties, so around 25 is a natural time to begin. There's no upper limit either: it's just as valuable in your 40s, 50s and beyond, whether you're starting fresh or staying ahead of the curve. For anyone under 18, we'd check with a parent or doctor first, since young bodies usually make plenty on their own.

Yes — on both counts. Every batch is tested by an independent third-party lab for purity and heavy metals, and we're NSF Certified and UNFI approved — the same standards that let us sit on shelves at the most trusted retailers in the country.

Transparency is the standard, not a favor: if you'd like the Certificate of Analysis for the batch you have, email us the lot code on your pack and we'll send it right over.

Always check with your doctor first — but here's the encouraging part: collagen is a pure, clean protein with nothing artificial, and protein needs rise sharply during pregnancy (commonly cited guidance is roughly 25g more per day). Many moms-to-be use it as a gentle, easy way to get more.

It's especially loved postpartum, when it can help with the hair shedding and skin recovery so many new moms go through. Your provider always knows your situation best.

Yes — this is non-negotiable for us. Every production run is third-party lab tested and verified for zero metals, toxins and fillers. Purity is the whole point of ingestible skincare; if it goes in your body, it has to be clean.

No collagen product on the market is "FDA approved" — that isn't a category the FDA approves. What matters is what's in the tub: ours is made in the USA and third-party tested for purity and heavy metals on every batch.

As required, our statements haven't been evaluated by the FDA and aren't intended to diagnose, treat, cure or prevent any disease.

Collagen is a natural protein your body already makes, so it's very well tolerated. A small number of people feel mild fullness at first, which usually passes quickly. Every batch is third-party tested for purity and heavy-metal safety.

Our marine collagen is wild-caught and responsibly sourced. We care about where our ingredients come from as much as what they do — clean sourcing and clean testing are two sides of the same standard.

Every flavor is made from one source or the other — wild-caught marine or grass-fed bovine, never a mystery blend.

Our marine collagen is hydrolyzed collagen peptides derived from wild-caught cod, fully traceable from source to batch and rigorously third-party tested for zero heavy metals or fillers.

Our bovine collagen is ethically and sustainably sourced from grass-fed cattle in Brazil — premium grade, fully traceable, and rigorously tested. It's free from growth hormones, antibiotics, BSE, TSE, ethylene oxide, irradiation, nitrosamines, and melamine, and manufactured with love in Los Angeles, USA.

The source for your flavor is printed right on the pack.

Yes — heat doesn't destroy collagen. Blend it into hot or iced drinks, smoothies, even bakes. For the silkiest result, make a quick concentrate first: whisk your stick into 2 tbsp of water until smooth, then top with 120 ml of milk. Pairs beautifully with matcha, coffee and chocolate milk.

Absolutely. Collagen pairs especially well with vitamin C (which helps your body use it) and with hydrators like hyaluronic acid or ceramides. There's no known interference with everyday vitamins — stack away.

You can — but one stick is really all you need. Our 5g is already double the clinically studied dose, so a second won't do more for your skin; the only reasons to reach for another are the taste or an extra protein boost. More collagen isn't more benefit — daily consistency is what does the work.

Treat it like a little café moment: choose your dose, whisk it into 2 tbsp of water to make a smooth concentrate, then finish with 120 ml of cold or steamed milk. Our favorite pairings: Vanilla Bean + coffee, Banana Milk + matcha, Banana Milk + chocolate milk, and Strawberry Milk + matcha. More ideas live on our recipes page.

One scoop is one daily serving — about 5g of collagen, the clinically studied dose. Because flavor and milk powder add weight, the scoop differs by line:

Want it stronger? Reach for a more intense flavor or a little less liquid — no need to add more powder. One serving already delivers the full 5g, which is all your skin can put to use.

One stick a day does it — 5g of highly bioavailable collagen, double the clinically studied dose. There's no need to go beyond that; consistency matters far more than mega-dosing, so the magic is really taking it every single day.

Whenever you'll actually remember — morning coffee, a post-workout shake, or bedtime tea. Collagen isn't time-sensitive; daily consistency beats perfect timing every time.

Anytime, no strings. Manage, skip, pause or cancel straight from your account — you're always in control of your ritual and your cadence.

We do ship to many countries — rates and timing are calculated at checkout based on your address. If you don't see your country, email us and we'll help you find the best way to get your glow.

A few things to know before you order: any duties, taxes and tariffs are set by your local customs and are the responsibility of the recipient, not something we control or cover. We also can't be held responsible for international shipments that don't arrive once they've left us — but if a parcel is returned to us, we'll refund the cost of the product.

Orders ship within 1–2 business days, with domestic delivery typically landing in 3–5 business days. Shipping is free on orders over $50, and you'll get a tracking link by email the moment your order leaves us.

We want you to love it. If something isn't right with your order, email us and we'll make it right.

We offer exchanges and returns within 7 days of receiving your order, as long as the bag is unopened — or if only one stick has been used. Just send us an email letting us know and we'll take it from there.

Made in LA, with flavors inspired by Seoul. Every product is produced in the USA and shipped from our facility — loved everywhere, from Sephora shelves to your kitchen counter.