Affiliate disclosure
We earn a commission if you buy through the links on this page. It did not buy a favourable review.
Ancient + Brave is best known for collagen, with a range spanning roughly £22 to £34 and a 4-star rating across 3,292 Trustpilot reviews. For readers on a GLP-1 the interesting product is not the collagen at all — it is the creatine, which is one of the very few supplements with genuine evidence for preserving the muscle these medications put at risk.
The Creatine Is the Reason to Be Here
Creatine monohydrate is among the most researched supplements in existence, with consistent evidence for supporting lean mass and strength when combined with resistance training — and a long safety record at standard doses.
We say this rarely on this site, so it is worth being clear: this is a supplement category where the evidence is real rather than extrapolated. Set against the patches, confounded correlations and detox tonics elsewhere in these reviews, creatine is in a different class of evidence entirely.
Its relevance here is direct. Roughly a quarter to a third of the weight lost on a GLP-1 can be lean mass unless you protect it, and the two interventions that work are adequate protein and resistance training. Creatine supports the training side — it is not a substitute for lifting, but it improves what lifting achieves. Combine it with a £100-ish suspension trainer and adequate protein and you have covered the parts of GLP-1 treatment nobody sells you.
Two practical notes. Creatine draws water into muscle, so expect a small increase in scale weight in the first weeks — that is intracellular water, not fat, and it is worth knowing in advance so you do not misread it. And it needs adequate fluid intake, which deserves attention on a medication where dehydration is the main serious risk.
The Collagen Is Not
Collagen is the brand’s flagship, and customers report benefits for nails and skin. That is a legitimate use with modest supporting evidence.
It is not a muscle product. Collagen is very low in leucine and contains no tryptophan, so it does not trigger muscle protein synthesis — the same objection we raise to bone broth protein and to the collagen in Everyday Dose. If you buy collagen expecting it to protect lean mass while you lose weight, you have bought the wrong thing from the right shop.
Product Facts
| Active ingredient | Amount per serving |
|---|---|
| True Creatine+ | Creatine-based; per-serving grams not verified by us — standard maintenance dosing is around 3–5g daily |
| Collagen range | Collagen peptides; per-serving amounts not verified by us |
| Clarity Mushroom Tincture | Mushroom extract tincture; amounts not verified by us |
| Manufacturer | Ancient + Brave |
|---|---|
| Serving size | Varies by product |
| Servings per container | Varies by product |
| Other ingredients | Not verified by us |
| Intended use | Collagen for skin and connective tissue; creatine for strength and lean mass; mushroom tinctures for general wellness |
| Directions | Per the individual product label |
| Warnings | Creatine requires adequate fluid intake — relevant on a GLP-1, where dehydration is the main serious risk. Discuss with a clinician if you have kidney disease. Collagen is not a complete protein and should not be counted toward a muscle-preservation target. |
| Allergens | Collagen products are animal-derived and unsuitable for vegetarians and vegans |
| Pricing | Roughly £22–£34; True Creatine+ around £28, Clarity Mushroom Tincture £34 |
| Subscription options | Not verified by us |
| Refund policy | Not verified by us |
| Shipping | Direct and through health retailers |
Price and Reputation
A 4-star Trustpilot rating across 3,292 reviews is a solid record on a respectable sample, and customers describe the pricing as reasonable against comparable brands.
One honest note on the creatine specifically: creatine monohydrate is a commodity ingredient and plain versions are available very cheaply from budget brands such as Nutricost. At around £28 you are paying a premium for presentation and brand rather than for a superior molecule. The evidence attaches to creatine, not to any particular label.
Pros and Cons
Pros
- Sells creatine — one of the best-evidenced supplements for lean mass
- 4-star Trustpilot rating across 3,292 reviews
- Reasonably priced against comparable premium brands
- Named products rather than opaque proprietary blends
- Customers report real benefits from the collagen for nails and skin
Cons
- The flagship collagen does nothing for muscle preservation
- Creatine monohydrate is far cheaper from commodity brands
- Per-serving amounts not published in sources we could verify
- Mushroom tincture at £34 rests on thin evidence
- Collagen products are unsuitable for vegetarians and vegans
Who Should Use It, and Who Should Look Elsewhere
Buy the creatine if you are doing resistance training alongside a GLP-1 and want a supplement with real evidence behind it. Confirm the per-serving dose against the standard 3 to 5 grams daily, and keep your fluid intake up.
Skip the collagen if muscle is your concern — it will not help, whatever the gram count says. And if price matters, plain creatine monohydrate from a tested budget brand contains the same molecule for considerably less.
Limitations of This Review
This is a brand-level review based on retailer listings and independent coverage checked on 7 August 2026. Prices are quoted in pounds as found and may differ in other markets. We could not verify per-serving creatine or collagen amounts — check the creatine dose specifically against standard 3–5g guidance — nor testing practices, allergens or refund terms. Statements about creatine and collagen describe those ingredients generally rather than this brand’s formulations. We have not tried the products.
Frequently Asked Questions
Why is creatine relevant on a GLP-1?
Creatine monohydrate is among the most thoroughly researched supplements in existence, with consistent evidence for supporting lean mass and strength alongside resistance training. Since a quarter to a third of GLP-1 weight loss can be muscle, that is directly on point — and it is cheap and safe.
Should I take the collagen instead?
Not for muscle. Collagen is very low in leucine and lacks tryptophan, so it does not trigger muscle protein synthesis. It has modest support for skin and connective tissue, which is a different goal.
How much does it cost?
Products run roughly £22 to £34, with True Creatine+ around £28 and a Clarity Mushroom Tincture at £34.
Is the brand well regarded?
It holds a 4-star rating across 3,292 Trustpilot reviews, with customers describing it as reasonably priced against comparable brands.
Verdict
3.1 / 5
A well-regarded brand whose flagship product does not do what this audience needs — and whose creatine, at a premium, does.
The rating averages two different things. The creatine is genuinely worth taking if you are lifting while losing weight, and it is one of very few supplements on this site we would recommend on evidence rather than on hope. The collagen is a skin product being bought by people who need a muscle product.
Buy narrowly, check the creatine dose, and remember that the evidence belongs to the molecule rather than the brand — the same creatine costs much less elsewhere.
Supplement Disclaimer & Review Date
These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Dietary supplements are not FDA-approved medications, are not reviewed by the FDA for safety or effectiveness before they go on sale, and are not a substitute for prescription treatment.
Nothing on this page is medical advice, and nothing here should be read as a promise of weight loss or of any particular result. Supplements can interact with prescription medications and are not appropriate for everyone. Talk to a doctor or pharmacist who knows your medical history before starting any supplement — particularly if you are pregnant or breastfeeding, take prescription medication, manage a chronic condition, or are already taking a GLP-1 medication.
Details about Ancient + Brave come from the manufacturer's own published materials as of the date below. Ingredients, amounts, pricing, and policies change frequently — check the current label and product page before purchasing.
Last reviewed: August 7, 2026
Creatine Plus Lifting, Not Collagen
Creatine supports what resistance training achieves; collagen does not touch muscle. Check the dose is 3–5g and keep your fluids up.