Collagen Peptides
Unflavoured Grass-Fed Bovine Collagen
Collagen Bovine 303g - SAMPLE
73% saw a visible improvement in fine lines & wrinkles*
The EU grass-fed Bovine Collagen we use was put through a double-blind, placebo-controlled clinical study. Here's what you may expect from 12 weeks of daily use:
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Weeks 4-6
Skin feels more hydrated. Nails may grow faster.
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Weeks 8-10
Fine lines soften. Joint stiffness may begin to ease.
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Week 12+
Sustained results. Where the trial participants saw the most significant change.
Your body makes collagen. It just makes less of it every year.
From your mid-twenties, collagen production declines - and by your mid-thirties, you feel it. Slower recovery. Ageing skin. Joints that don't quite bounce back.
Hydrolysed collagen peptides give your body the building blocks to replenish what it's losing. 10,000mg of types I and III collagen, sourced from EU grass-fed herds. Paired with 100mg Vitamin C per serving - because without it, your body can't actually synthesise collagen.
Rheal vs The Rest.
10,000mg dose per serving
Added Vitamin C
Traceable Sourcing
High Absorption Rate
From 80p a serving
How to use
Make it part of a ritual you already love
One scoop. Any drink. Every day.
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1. Pick your moment.
Morning coffee, matcha, smoothie - just stir in one scoop.
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2. Soluble and enjoyable.
Neutral taste with a slightly creamy texture once dissolved.
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3. Give it time.
Results build over weeks, not days. Consistency is your best friend.
Tested for quality. Trusted every day.
Every ingredient is sourced with care and tested for purity and safety - so you can feel confident in what you’re taking, every day.
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Independently verified for quality and safety
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Sourced directly from trusted farms and producers
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Developed by nutritionists using clinically studied ingredients
Build Your Routine
Trusted by millions
See why people choose Rheal every day.
Highly recommend
Find the products amazing, really noticing the difference after a month of using.
Did what it said it would.
Really impressed a great addition to my daily routine.
Life changing!
I've been using these products for 3 months now and I feel incredible. Best purchase I've ever made.
Amazing quality
The taste is great and I can really feel the difference in my energy levels throughout the day.
You Have Questions? We Have Answers.
Expert in-house support teams
What is bovine collagen and what does it do?
Bovine collagen is a protein derived from the connective tissue of cattle. It provides Types I and III collagen peptides - the two most abundant collagen types in the human body. Type I supports skin structure, bones and tendons; Type III supports skin elasticity, muscle and blood vessel integrity. When taken as hydrolysed peptides, bovine collagen is broken down into smaller chains the body can absorb and direct to where collagen is needed most, including skin, joints and connective tissue.
What type of collagen is in Rheal Collagen Peptides?
Rheal Collagen Peptides contains Types I and III hydrolysed bovine collagen peptides, sourced from European grass-fed cattle. The collagen is derived from bovine hide and hydrolysed to an average molecular weight of 2,000–5,000 Da, which places it well within the range for efficient absorption through the intestinal wall.
How much collagen is in each serving of Rheal Collagen Peptides?
Each serving of Rheal Collagen Peptides contains 10,000mg (10g) of hydrolysed bovine collagen peptides. This is the dose consistently used in clinical research on collagen supplementation. A 12-week double-blind, randomised, placebo-controlled trial using 10g of hydrolysed bovine collagen peptides daily found that 73% of participants showed statistically significant improvement in wrinkle length by week six, with improvements continuing through week 12.
Why is Vitamin C included in Rheal Collagen Peptides?
Vitamin C is included because it is an essential co-factor in the body's natural collagen synthesis process. The European Food Safety Authority (EFSA) has approved the health claim: "Vitamin C contributes to normal collagen formation for the normal function of skin, bones and cartilage." Most collagen supplements do not include Vitamin C, meaning the body may lack the co-factor needed to effectively utilise the collagen being consumed. Rheal includes it as a deliberate formulation decision.
Where does Rheal's bovine collagen come from?
Rheal Collagen Peptides is sourced from European grass-fed cattle. The collagen is hide-derived and produced through a specific enzymatic hydrolysis process. The protein content of the hydrolysed collagen is 90%. Rheal does not use bovine collagen from outside Europe or from grain-fed cattle.
How long does it take for bovine collagen supplements to work?
Bovine collagen supplements typically require consistent daily use over 8–12 weeks before results become clearly noticeable. In clinical research using 10g of hydrolysed bovine collagen daily, measurable improvements in skin wrinkle depth were observed from week six, with continued improvement through week 12. Early changes in skin texture and joint comfort may be noticed from weeks four to eight. Collagen works by supporting the body's natural collagen synthesis over time — it is not a fast-acting supplement.
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