Collagen That

Actually Works

Nostalgic delicious flavors, zero grit, clinically proven peptides. Your daily beauty ritual now starts in the kitchen.

Why you'll love it:

  • +138% hydration, +153% elasticity in 8 weeks
  • Nostalgic flavors with 0 to 3g sugar per drink
  • 5g protein peptides hydrolyzed for absorption
  • 0% fillers, 0% grit, 100% glow

Clinically Proven

Double the Absorption

  • +23% SKIN HYDRATION
  • WRINKLE SHRUNK BY 9.4%
  • +24% SKIN DEFORMATION RECOVERY

Focus Groups

Sip your way to a clearer, and more youthful wrinkle-free skin.

BEFORE CRUSHED TONIC
0%
Overall Success
Skin Smoothness & Softness
Skin Firmness & Elasticity
Skin Moisture
icon Est 2017
AFTER CRUSHED TONIC
0%
Overall Success
Skin Smoothness & Softness
Skin Firmness & Elasticity
Skin Moisture
icon 100,000+ Customers

The Science Behind the Magic

Collagen is the key protein that gives your skin structure and strength.

Drinking collagen has been shown to support your body’s natural collagen production, helping your skin appear firmer, more hydrated, and smoother —with fewer visible fine lines.

“Collagen is the primary structural protein of the dermis, responsible for skin strength, integrity, and elasticity. With age, endogenous collagen production declines, contributing to reduced firmness and the appearance of fine lines.

Hydrolyzed collagen peptides may act as bioactive signals that stimulate fibroblast activity and support new collagen synthesis, helping improve skin hydration and elastcity.”

Dr. Tess Mauricio, MD
Celebrity & Board Certified Dermatologist

Results You Can Feel And Taste

High-absorption hydrolyzed marine collagen peptides (4,000 Daltons)
Free from metals, fillers, and additives
3rd-party tested for purity, safety, and potency

Stop Wasting Money on Collagen Powders You’ll End Up Hating

We made something you’ll actually crave – a collagen that tastes like it belongs in your kitchen, not your medicine cabinet.

Other Collagen

Hidden Metals and Cheap Fillers

Low-quality inputs that compromise purity

Hidden Metals and Cheap Fillers

Low-quality inputs that compromise purity

Hidden Metals and Cheap Fillers

Low-quality inputs that compromise purity

Our Collagen

Clinically Tested for Absorption

Designed for maximum bioavailability

Clinically Tested for Absorption

Designed for maximum bioavailability

Clinically Tested for Absorption

Designed for maximum bioavailability

Meet Our Founder

After discovering collagen through her own skin recovery journey, Sally founded Crushed Tonic to combine real skincare science with comforting, nostalgic flavors – so your daily glow ritual tastes as good as it works.

Sally has also since published her own research guide and cookbook, The Collagen Glow!

From Kitchen Accident to Collagen Obsession.

After a severe burn injury, our founder spent seven years working with Korean labs and nutritionists to rebuild her skin from within.The result: clinically tested collagen that actually tastes amazing — no fillers, no metals, just results.

1

Pour 1-2 TBSP of water in a glass.

2

Pour 1-2 TBSP of water in a glass.

3

Pour 1-2 TBSP of water in a glass.

4

Pour 1-2 TBSP of water in a glass.

OUR COLLECTIONS

  • KOREAN MILK COLLAGEN

    Tastes like milks from childhood but now with protein & 1/5th of sugar.

  • SUGAR-FREE COLLAGEN

    Matcha, coffee, hojicha, lucuma, turmeric — all now with collagen.

  • SAVORY COLLAGEN

    Rich, comforting, mineral-dense broth to sip and cook with.

BEST SELLER
BEST SELLER
BEST SELLER

Unsure What Flavor You’ll Love?

WITH 18+ FLAVORS, WE’VE MADE IT EASY — TAKE OUR QUICK QUIZ AND FIND YOUR PERFECT MATCH.

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Ask Sally anything

Real People,Real Results

★★★★★
My favorite !! I'm on my 5th batch.I love blending it into my smoothies every morning!
— Julia Fox
★★★★★
I've never had such delicious collagen in my life, and I've tried 14 brands. This tastes liike a yummy boba! Also made my under eyes less hollow. It's incredible.
— Jennifer K.
★★★★★
It's amazing... my hair fell out due to chemo. Everybody always compliments my new hair.
— Sarah M.
  • ★★★★★
    My favorite !! I'm on my 5th batch.I love blending it into my smoothies every morning!
    — Julia Fox
  • ★★★★★
    I've never had such delicious collagen in my life, and I've tried 14 brands. This tastes liike a yummy boba! Also made my under eyes less hollow. It's incredible.
    — Jennifer K.
  • ★★★★★
    It's amazing... my hair fell out due to chemo. Everybody always compliments my new hair.
    — Sarah M.

The Collagen Glow

The Collagen Glow shows how adding collagen to your daily routine can support firmer, more hydrated, and smoother-looking skin.

With 40 easy, delicious recipes, this guide helps you choose high-quality collagen and use it effectively.

Inspired by her Korean roots, Sally Kim shares a simple 10-step plan that goes beyond topical skincare. It focuses on nourishment from within for healthy skin, strong hair and nails, and better joint support.

FAQ

  • Keratin and collagen peptides help support the skin barrier and improve hydration and elasticity, which can reduce the appearance of irritation and uneven texture. When skin is better supported structurally, it often looks calmer and more balanced overall.

  • Our pouches are all formulated a little differently, depending on the flavor—some are bolder, some lighter—but every single pouch always contains 150g of pure collagen.

    Unflavored: 150g or 300g options.

    Matcha, Turmeric, Lucuma, Coffee: about 210g net weight (150g collagen + flavor).

    Sweet flavors: 150g collagen + up to 225g in flavor weight for a total weight ranging from 300-400g.

    This just means the flavor profile varies—never the collagen. Each serving is built around 5g of collagen plus flavoring, which makes one scoop roughly 5g–15g depending on the SKU.

    How to serve it:

    For a lighter drink (and to stretch your pouch to ~30 servings), use ½ scoop with less water.

    For a café-style tall drink, use 1.5–2 scoops.

    For our sugar-free line, use 2 tsp for 5g collagen (the clinically proven dose) or 4 tsp for 10g collagen and a stronger taste.

  • Both bovine (cow-derived) and marine (fish-derived) collagen have excellent benefits, but they differ in source, absorption, and targeted effects—which is why marine collagen is often more expensive. Here’s a breakdown:

    Bovine collagen comes from cows, often sourced from their skin, bones, or cartilage. It primarily contains Type I and Type III collagen, which are excellent for supporting skin, bones, and joints. On the other hand, marine collagen is derived from fish scales or skin and mainly contains Type I collagen, the most abundant type in the body, responsible for skin health and anti-aging benefits. Since Type I collagen is the most bioavailable and crucial for skin structure, marine collagen is often seen as superior for beauty benefits.

    Marine collagen has a smaller molecular size (4,000 Daltons in Crushed Tonic's marine collagen compared to 5,000 Daltons for bovine). Smaller peptides allow for faster and better absorption, making marine collagen particularly effective for skin health and anti-aging. While bovine collagen is still highly effective, it absorbs slightly slower due to its larger peptide size. (FYI - other bovine collagens are 9,000 Daltons!)

    Marine collagen is better suited for improving skin hydration, elasticity, and reducing wrinkles. It’s also popular for beauty-focused results, including strengthening hair and nails, and it supports bone density and joint health as well. Bovine collagen, by contrast, excels in promoting joint health, gut support, and general body repair. Since it combines Type I and Type III collagen, it’s particularly beneficial for tissues, muscles, and bones.

    Marine collagen tends to be more expensive because fish-derived collagen production is costlier. Additionally, it’s generally considered purer and less likely to cause inflammation or allergies compared to bovine collagen. Its superior absorption and beauty benefits also increase demand, contributing to the higher price.

    Crushed Tonic’s marine collagen is tested for zero heavy metals and is both kosher and halal certified, making it suitable for a broader range of consumers. Similarly, Crushed Tonic’s bovine collagen is also kosher and halal certified and free from growth hormones, antibiotics, BSE, and TSE, ensuring a clean and safe product.

    If your main focus is enhancing skin, hair, and nails, marine collagen may be worth the extra investment due to its superior absorption and high Type I collagen concentration. However, if you’re seeking more cost-effective and overall health benefits, such as joint and gut support, bovine collagen is an excellent choice. Ultimately, both are amazing quality sources of protein peptides and you can't go wrong with either!

  • Marine Collagen: You can test for quality of our marine collagen by adding it to a cup of water; it should dissolve perfectly as shown here.

    1. It is the most effective. Our tilapia fish skin collagen is the most bioavailable (AKA smallest in size and therefore best absorbed by our body). Tilapia skin also has the highest concentrations of protein and amino acids in their scales.

    2. It tastes best! Other collagen types are known for a stronger, gamier taste, while both of our collagen is essentially flavorless.

    3. Our collagen is sourced ethically and sustainably; because tilapia is so abundantly over-farmed (and the skin is so often discarded), sourcing collagen from tilapia is the most environmentally friendly.

    Grass-fed Bovine Collagen:

    Our bovine collagen is hydrolyzed for maximum bioavailability: our bovine collagen boasts of 5,000 Dalton size for optimal absorption and effectiveness, compared to 9,000 Dalton size of other bovine collagen brands.

    Our bovine collagen is also free of Growth Hormones, Antibiotics, BSE, TSE, Ethylene Oxide, Additives, Irradiation, Nitrosamines and Melamine.

  • Our collagen is sustainably sourced from discarded fish skin — a nutrient-rich by-product of the seafood industry that is typically thrown away. Instead of contributing to waste, we upcycle these skins and gently process them into high-purity collagen peptides. This approach supports more responsible sourcing, reduces environmental burden, and allows us to create clean, traceable collagen without additional fishing demand.

  • Study 1
    Method: By measuring the time and quality of skin's ability to return to the original state after stretching and pulling it using a cutometer (a skin elasticity meter).

    At week 12, results showed that regular intake led to:

    18% increase in skin firmness

    27.2% decrease in skin elasticity

    22.8% increase in skin hydration

    Study 2

    Method: By measuring the shadows cast by one's wrinkles. At week 12, results showed that regular intake led to an average of -9.73% in length of respondents' wrinkles' shadows.

    Study 3

    Method: By studying perioral and Crow’s feet wrinkles on 95 healthy 55-60 year old females.

    At week 12, results showed that regular intake led to:

    improved skin elasticity

    reduced facial wrinkle appearance

    improved skin complexion homogeneity and radiance

    decrease of the mean score of facial wrinkles

    This study was conducted by CPCAD / Hospital of Nice (France) and biomechanical measurements of volunteers were controlled by certified dermatologists. It was performed according to French regulatory competent authority (ANSM) and approved by the local Ethical Committee (CPP).

    Study 4Method: By measuring the degree of deformation and the time required for the skin to return to its original state.

    At week 12, results showed that regular intake led to:

    improved skin elasticity

    decreased links

    improved skin complexion homogeneity and radiance

    The Cutometer® DUAL probe (Courage and Kazhaka, Köln, Germany) using a suction method measured a deformation perpendicular to the skin surface.

    A negative pressure of 450 mbars was applied to the skin through the probe for 2 seconds, followed by a relaxation period of 2 seconds. This cycle was performed 5 times.

  • Due to government tariffs, our production costs have increased by over 50% this year. Until now, we’ve absorbed these increases ourselves, but we’ve reached a point where we simply can’t carry the difference alone anymore.

    Starting this month, we’ve made a modest adjustment of 10%+ increase across the line (with the exception of our Matcha, which has also unfortunately tripled in cost and now lands at $55 per large pouch).

    Even with this change, we’re not certain it will fully cover what’s ahead—tariffs are ever-changing, and there may be further increases toward the end of the year.

    Thank you so much for your continued support and understanding as we navigate this unpredictable climate.

    Building Crushed Tonic has always been about bringing you the best collagen and wellness products possible, and I remain committed to making sure our quality never wavers—even when our costs do.

  • The benefits of collagen and keratin may take up to 7 days for skin and 14 days for hair..

  • Clinical studies show noticeable improvements with just 5g of collagen.

    For optimal results, we recommend taking 2 servings (10g of collagen) daily for 14 to 30 days. You may notice softer skin in as little as 5 days.

    For more significant results, such as reduced fine lines and thicker hair, consistent use over 3 to 6 months is ideal.

    Please make sure to consume daily as our bodies cannot store extra amino acids overnight!

  • Taking collagen supplements can be helpful during pregnancy and postpartum. Pregnant or breastfeeding women can experience brittle hair and even hair loss, so collagen can help restore hair back to health.

    As the baby grows, more and more pressure is put on your joints.

    Collagen peptides promote joint health by helping to repair joint matrix degeneration and improve long-term joint comfort and mobility, as well as helping to restore bone mineral density and support healthy bone metabolism.
    There’s a LOT of stress put on our joints as we carry the weight of growing baby.

    During breastfeeding

    The postpartum benefits of taking collagen can help with skin elasticity by helping to tighten back loosened skin on the stomach, and preventing stretch marks and hairloss.

    During breastfeeding, women are at risk of bone resorption; therefore, a daily collagen supplement may in turn reduce a woman's risk of osteoporosis later in life.