Inside the Youth & Earth Collagen GLP-1 Formula: Ingredients, Dosing, and Who It's For
TL;DR
The Youth & Earth Collagen GLP-1 Formula combines three clinically studied ingredients — Nextida™ collagen peptides, Solnul™ prebiotic fibre and Eriomin® citrus flavonoids — to support muscle maintenance, gut comfort and general metabolic wellbeing, including for those on a GLP-1 journey. This guide covers what's inside, how to take it, and who should speak to a prescriber first.
Maintaining muscle mass and supporting gut comfort are two of the most common challenges people raise when starting a metabolic wellness journey, whether or not they're taking a prescription GLP-1 medication. A standard collagen supplement offers useful structural support for skin and joints, but it doesn't address the fuller picture. The Youth & Earth Collagen GLP-1 Formula was developed to go further, pairing collagen with two additional, clinically studied ingredients aimed at gut comfort and general metabolic wellbeing. This guide sets out exactly what's inside the formula, how to take it, what it costs in the UK, and who it's suited to.
What Is the Collagen GLP-1 Formula?
The Youth & Earth Collagen GLP-1 Formula is a multi-ingredient food supplement designed for people focused on metabolic wellbeing and muscle maintenance, including those navigating a GLP-1 medication journey. It combines three clinically researched ingredients: Nextida™, a specific collagen peptide system studied for its role in muscle maintenance and metabolic wellbeing; Solnul™, a resistant potato starch prebiotic that supports gut comfort and a healthy microbiome; and Eriomin®, a citrus-derived flavonoid studied for its relationship with healthy blood sugar responses and a normal inflammatory response.
As a food supplement, it isn't intended to diagnose, treat, cure or prevent any disease, and it isn't designed to treat or prevent the side effects of prescription medication — more on that in the "Who It's For" section below.
Full Ingredient Breakdown: Nextida, Solnul and Eriomin
To understand what sets this formula apart, it helps to look at the evidence behind each of its three trademarked ingredients.
Nextida™ GC: Collagen for Muscle and Metabolic Support
Nextida™ GC is manufactured by Rousselot and represents a more targeted approach to collagen supplementation. While standard collagen provides the amino acid building blocks for tissue repair, Nextida™ has been studied at doses of 5–10g taken before a meal for its association with supporting the body's natural post-meal glucose response, alongside providing the structural protein that supports lean muscle mass during weight loss. The research in this area is still developing, and Nextida™ isn't a substitute for prescribed treatment — but it gives a more specific rationale than collagen alone for people focused on metabolic wellbeing.
Solnul™: The Gut-Comfort Prebiotic
Metabolic shifts — including those associated with GLP-1 medication — can slow gastric emptying. This supports satiety, but can occasionally bring digestive discomfort. Solnul™ is a low-FODMAP prebiotic fibre derived from resistant potato starch. It passes through the stomach largely intact and ferments lower in the gut, selectively feeding beneficial bacteria such as Akkermansia and Bifidobacterium. This fermentation produces short-chain fatty acids, which play a role in gut lining integrity and general gut comfort.
Eriomin®: The Citrus Multi-Tasker
Eriomin® is a high-potency blend of lemon flavonoids, primarily eriocitrin. It has been examined in three published human clinical trials looking at its relationship with healthy blood sugar responses, antioxidant activity, and a normal inflammatory response. Evidence in this area is still emerging, and Eriomin® is included for its general metabolic-wellbeing profile rather than as a treatment for any specific condition.
The Formula at a Glance
| Ingredient | Source / Type | Primary Role | Amount per Serving |
|---|---|---|---|
| Nextida™ GC | Collagen peptides (Rousselot) | Muscle maintenance, skin elasticity; studied alongside GLP-1 physiology | [Check label] |
| Solnul™ | Resistant potato starch (prebiotic) | Gut comfort, microbiome support, SCFA production | [Check label] |
| Eriomin® | Citrus flavonoid (eriocitrin) | Metabolic wellbeing and antioxidant support | [Check label] |
How It Differs from a Standard Collagen Supplement
If you've read our broader guide to collagen and GLP-1 support, you'll know that a standard collagen supplement — marine or bovine powder, for example — is well suited to providing the amino acids that support skin and joints during rapid weight loss. It works, in effect, along a single pathway: structural support.
The Collagen GLP-1 Formula is built to work across several pathways at once. It differs from a standard collagen product in three ways:
- Metabolic-wellbeing ingredients: alongside collagen peptides, it includes Eriomin® flavonoids, studied for their relationship with healthy blood sugar responses.
- Gut microbiome support: standard collagen doesn't feed gut bacteria. Solnul™ adds targeted prebiotic fibre to support gut comfort and microbiome diversity.
- Antioxidant support: standard collagen doesn't include flavonoids. Eriomin® adds a layer of antioxidant activity that a plain collagen powder doesn't offer.
For the wider context of how targeted supplementation fits into a metabolic wellness routine, see our GLP-1 pillar guide.
Dose, Timing and How to Take It
Getting the most from the formula — particularly the post-meal benefits associated with Nextida™ — comes down to timing and consistency.
- Format: a fine, easily mixable powder with a neutral-to-light flavour that suspends in hot or cold liquids without clumping.
- Daily dose: mix one scoop ([insert exact serving size]) into water, a smoothie, or another clear beverage.
- Timing: because Nextida's studied benefits relate to the period around a meal, we recommend taking your daily dose around 30 minutes before your largest or most carbohydrate-rich meal of the day.
- Stacking: the formula is designed to work alongside other foundational supplements. If muscle preservation is a specific priority, see our guide to building a GLP-1 muscle-loss stack.
Who It's For — and Who Should Check with a Prescriber First
The Collagen GLP-1 Formula is formulated for adults who want to proactively support their metabolic wellbeing, gut comfort and muscle mass — particularly:
- People on a weight-management journey who want to help preserve lean muscle and skin elasticity
- Anyone looking for a food-based way to support general metabolic wellbeing alongside their existing routine
- Those who experience occasional sluggish digestion and want targeted prebiotic support alongside their protein intake
Prescriber Note
Youth & Earth supplements are food supplements, not medicines. They are not intended to diagnose, treat, cure or prevent any disease, and are not designed to treat or prevent the side effects of prescription medication. If you are currently prescribed a GLP-1 receptor agonist (such as semaglutide or tirzepatide), are diabetic, take blood-sugar-lowering medication, or have known food allergies, speak to your GP or prescriber before taking this formula, so they can confirm it fits safely alongside your current treatment.
Price, Subscription and UK Delivery
We aim to make a clinically dosed formula like this accessible and simple to stick with, so it's available as a one-off purchase or a flexible UK subscription.
| Purchase Plan | Price | Frequency | Cancellation Terms |
|---|---|---|---|
| One-Off Purchase | [£XX.XX] | Single delivery | N/A |
| Monthly Subscription | [£XX.XX] (Save [X]%) | Every 30 days | Cancel, pause, or modify at any time |
UK delivery: standard delivery takes [2–4 business days]; express delivery [1–2 business days]. Visit the product page for live, up-to-date pricing.
Quality and Testing
When you're buying a multi-ingredient formula, transparency matters. Youth & Earth doesn't use undisclosed "proprietary blends" — every active ingredient's dose is stated on the label.
- Clinically studied ingredients: Nextida™, Solnul™ and Eriomin® are patented ingredients, each backed by independent human clinical research.
- GMP certified: manufactured in audited, Good Manufacturing Practice certified facilities.
- Third-party tested: every batch is independently tested to verify purity and the presence of active compounds, and to check for heavy metals or contaminants. Certificates of Analysis (COAs) are available on request.
FAQ
What is Nextida?
Nextida™ GC is a specific collagen peptide composition made by Rousselot. Unlike standard collagen, it has been studied at pre-meal doses for its relationship with post-meal glucose response, alongside its role in supporting muscle maintenance.
What is Solnul, and why is it in a collagen formula?
Solnul™ is a patented prebiotic fibre derived from resistant potato starch. It's included because metabolic shifts — including those associated with GLP-1 medication — can slow digestion. Solnul™ feeds beneficial gut bacteria, supporting gut comfort, a healthy microbiome and the production of beneficial short-chain fatty acids.
What is Eriomin?
Eriomin® is a clinically researched blend of lemon flavonoids, primarily eriocitrin. It has been studied in three human clinical trials for its relationship with healthy blood sugar responses, a normal inflammatory response, and antioxidant activity.
How do I take the Collagen GLP-1 Formula?
Mix one scoop into water or another beverage, ideally around 30 minutes before your largest or most carbohydrate-rich meal of the day.
How much does it cost in the UK?
See the pricing table above for current one-off and subscription pricing; check the product page for live prices.
Can I cancel my subscription at any time?
Yes. You can pause, adjust or cancel your subscription at any time, with no hidden fees or lock-in.
Getting Started
Ready to explore the Collagen GLP-1 Formula? The product page has live UK pricing, subscription options and delivery details. If you're currently on a GLP-1 medication or manage a health condition, speak to your GP or prescriber first to make sure it's the right fit alongside your existing routine.
The information in this article is for educational purposes only and isn't medical advice. Please consult a qualified healthcare professional before starting any new supplement regimen, particularly if you're on prescription medication or have an underlying medical condition.
