BASED ON CLINICAL RESEARCH + OVER 8600 VERIFIED REVIEWS
6 min read
7 Reasons The Collagen You’re Taking Isn’t Working Hard Enough.
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As seen on BBC One's Dragons Den
You’re probably thinking about taking collagen - or already are. You’ve seen theb rands, heard the promises, maybe spent more than you’d like on sachets or gummies that delivered… fine results. Maybe.
Here’s the thing: most collagen products fall short on three counts - wrong dose, unclear source, missing co-factor. Fix those three things and collagen works, like really works. That’s what we built.
Here’s what to look for instead:
Rated 4.5/5 on Trustpilot
Over 2M+ Customers Since Launch
Rated 4.4/5 on Trustpilot
Over 2M+ Customers
This is for you if…
You've been taking collagen for months but aren't sure it's doing much
You're paying £30–£80 a month and not confident you're getting the right dose
You don't know where your collagen comes from - and you're starting to wonder if that matters
You want the simplest, most effective daily collagen - not the most marketed one
Reason #1
If You’ve Tried Collagen Before and Saw Nothing - This Is Probably Why
Open your supplement cupboard and look at the dose on your current collagen. Or the one you tried before.
The clinical research on collagen consistently points to one number:
10,000mg of hydrolysed collagen peptides per day.
In a 12-week double-blind, randomised, placebo-controlled trial using 10g (10,000mg) of hydrolysed bovine collagen peptides daily, 73% of participants showed statistically significant improvement in wrinkle appearance by week 6 - improvements that continued through to week 12.
Different absorption rates. Overlapping ingredients. No clear system.
Rheal Collagen contains 10,000mg of hydrolysed peptides per serving. Not as a premium upgrade - as the standard.
I worked out I was spending £94 a month on separate supplements. Now it's £20 and I actually feel better than I did taking all of those.
Emma, 29, Bristol
Verified Customer
Reason #2
Ask Any Collagen Brand Where Their Collagen Comes From. Most Can’t Tell You.
Most collagen brands use vague language: ‘premium quality’, ‘sustainably sourced’, ‘high grade’. What they won’t tell you is the specific source - because it’s often not what you’d hope.
Rheal leads with it.
Random supplements don't work as a team. You're taking five things that were never designed to work together — different absorption rates, potential conflicts, no synergy.
Balance Tonic was formulated as a system.
Each ingredient has one specific role:
Marine Collaegn
Wild-caught cod, haddock and pollock from Norwegian waters.
MSC certified
Friends of the Sea certified
FSSC 22000 facility
Halal and Kosher certified
Type I peptides. Provenance you can verify.
Collagen Peptides (Bovine)
European grass-fed bovine. Hide-derived.
European grass-fed source
Types I + III peptides
90% protein content per serving
Backed by JPMS 2024 double-blind RCT
Types I + III. Whole-body provenance.
Sourcing transparency isn't a marketing claim. It's what you should expect from every supplement you take daily.
Reason #3
There’s One Thing Missing From Almost Every Collagen Supplement. We Put It In Ours.
Your body doesn’t store collagen - it makes it. And to make it, it needs one co-factor that most collagen supplements don’t include.
Vitamin C
The European Food Safety Authority has approved the following health claim: Vitamin C contributes to normal collagen formation for the normal function of skin, bones and cartilage.
That’s a regulatory body confirming that the science has long shown: Vitamin C isn’t optional in collagen synthesis. It’s essential.
Most collagen products don’t include it. They assume you’re getting enough elsewhere - or they simply haven’t thought beyond the collagen itself.
Reason #4
Most Collagen Never Reaches Your Skin. Here’s Why Ours Does.
Standard collagen molecules are too large for your body to absorb efficiently through the intestinal wall. Most of what you swallow in an under-processed collagen product doesn’t reach where it needs to go.
Hydrolysed collagen peptides are broken down into shorter chains - smaller molecular weight, more bioavailable, absorbed efficiently into the bloodstream and directed to where collagen is needed most.
Both Rheal Marine and Bovine Collagen are fully hydrolysed.
Marine: 〜3kDa average molecular weight. Bovine: 2,000-5,000 Da average molecular weight. Both well within the efficient absorption range.
They dissolve instantly in hot or cold liquid - no clumping, no aftertaste, no unpleasant fishy odour.
Highly recommend
Find the products amazing, really noticing the difference after a month of using.
Stacie Finney
Verified Customer
Highly recommend
Find the products amazing, really noticing the difference after a month of using.
Stacie Finney
Verified Customer
Reason #5
There’s One Thing Missing From Almost Every Collagen Supplement. We Put It In Ours.
Most collagen brands use vague language: ‘premium quality’, ‘sustainably sourced’, ‘high grade’. What they won’t tell you is the specific source - because it’s often not what you’d hope.
Rheal leads with it.
Random supplements don't work as a team. You're taking five things that were never designed to work together — different absorption rates, potential conflicts, no synergy.
Balance Tonic was formulated as a system.
Each ingredient has one specific role:
Marine Collaegn
Type I collagen peptides.
Best for skin hydration, elasticity, hair and nails.
If your focus is solely skin and beauty from within - this is your formula..
Collagen Peptides (Bovine)
Types I + III collagen peptides.
Skin, joints, connective tissue, recovery + whole body benefits.
If you want collagen to work across your whole body - this is your formula.
Can’t decide? Bovine covers all bases - joints, skin, hair, recovery, whole body. It’s our most versatile formula and the most popular choice for people who want collagen to work everywhere.
Reason #7
Two Ingredients. One Standard. Trusted by Holland & Barrett, Boots and Sainsbury’s.
Some collagen products contain 15+ ingredients. Hyaluronic acid, biotin, probiotics, flavour masking, sweeteners = all added to justify a higher price point or disguise the quality.
Rheal Collagen contains two things in each serving: 10,000mg hydrolysed collagen peptides. 100mg Vitamin C.
No fillers. No flavour masking. Dissolves into your coffee or matcha. Has a neutral taste and no fishy odour.
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Collagen Peptides (Bovine)
New
European Grass-Fed. Types I + III for skin, joints, whole-body benefits.
Marine Collagen
New
MSC-Certified. Type I Collagen for skin, hair and nails.
Plant Collagen
New
A vegan-friendly alternative with no animal-derived ingredients.
Rated 4.4/5 on Trustpilot
Over 1M+ Customers
frequently asked questions
You Have Questions?
We Have Answers.
What's the difference between Marine and Bovine collagen?
Marine collagen provides 100% Type I collagen peptides, sourced from wild-caught Norwegian cod, haddock and pollock. Type I is the dominant structural protein in skin, making marine the more targeted choice for skin hydration, elasticity, hair and nails. Bovine collagen provides Types I and III collagen peptides, sourced from European grass-fed cattle. Type III additionally supports joints, connective tissue, muscle and recovery - making bovine the more versatile whole-body option that also supports skin. Both contain 10,000mg of hydrolysed collagen peptides per serving with added Vitamin C. Not sure which to choose? Bovine covers all bases.
How long until I see results?
Collagen works by supporting your body's natural synthesis process over time - it isn't a fast-acting supplement and results build with consistency. In a 12-week double-blind, randomised, placebo-controlled clinical trial using 10g of our hydrolysed bovine collagen daily, 73% of participants showed measurable improvement in wrinkle length by week 6, with continued improvement through week 12. Most people notice early changes in skin texture and hydration from weeks 4–6, with the most significant and sustained results typically coming at week 12 and beyond. The ritual matters as much as the product - one scoop, every day.
Why is Vitamin C included?
Your body cannot synthesise collagen without Vitamin C - it's an essential co-factor in the collagen production process, not an optional addition. 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." That's a regulatory body confirming what the science has long shown. Most collagen supplements don't include Vitamin C, assuming you're getting enough elsewhere - or they simply haven't thought beyond the collagen itself. We included it because the formula isn't complete without it.
Is Rheal collagen clinically backed?
Yes. The hydrolysed bovine collagen peptides in Rheal Collagen Peptides have been studied in a 12-week double-blind, randomised, placebo-controlled clinical trial published in the Journal of Pioneering Medical Sciences (April 2024). The trial involved 72 healthy women aged 40–65 taking 10g of hydrolysed bovine collagen daily. 73% of participants showed statistically significant improvement in wrinkle length by week 6, with further improvements in skin hydration and barrier function through week 12. Additionally, the Vitamin C in both formulas carries an EFSA-approved health claim for its role in normal collagen formation. For Marine collagen, clinical research on Type I hydrolysed marine collagen peptides has demonstrated improvements in skin elasticity, hydration and smoothness from four weeks of daily use at the 10g dose.
How do I take Rheal collagen?
Add one scoop (10g) to water, coffee, matcha, juice or any hot or cold drink. Both Marine and Bovine dissolve instantly - no clumping, neutral taste, no fishy odour from the Marine and no aftertaste from the Bovine. You can also stir into yoghurt or oats. For best results take daily and consistently - most people build it into their morning routine alongside breakfast or their first drink of the day. Our Collagen is designed to work with a ritual you already love.
How do I manage my subscription?
You can skip, pause, or cancel your subscription at any time through your account portal. There are no penalties or lock-in periods. Your subscription details are always fully within your control.
Promotional T&Cs:
The Starter Kit and Bundle options are introductory offers for first-time subscribers only. Your recurring subscription item(s) will be communicated to you in your account area and through any upcoming charge emails. If you return part or any of your order without the unused free promotional items, we reserve the right to charge you for the free items - this may be reflected in your refund amount. This offer cannot be combined with other promotions. Using multiple offers will void the free gift(s) in your order. Flavour of free wellness shot subject to change.
