Quick Comparison
| Collagen Greens | AG1 | |
|---|---|---|
| Price (1 month) | ~£49 | ~£79–£119 |
| Servings per pack | 33 | 30 |
| Collagen | 4g (bovine, Types I & III) | ❌ None |
| Creatine | 4g monohydrate | ❌ None |
| Super Greens | 6 premium greens | 75+ ingredients blend |
| Probiotics | ❌ Not included | ✅ 7.2bn CFU |
| Adaptogens | ❌ Not included | ✅ Ashwagandha, rhodiola |
| Digestive Enzymes | ✅ DigeZyme® | ✅ Included |
| UK-made | ✅ Yes | ❌ Made in USA |
| Money-back guarantee | ✅ 60-day | ✅ 90-day |
Prices correct as of March 2026. Always verify on the respective brand websites.
What AG1 Does Well
AG1 is genuinely impressive in its breadth of ingredients: 75+ vitamins, minerals, whole food complexes, adaptogens, probiotics, and digestive enzymes in a single serving. For someone who wants a comprehensive one-stop nutritional product and is not specifically focused on collagen or creatine, AG1 covers a lot of ground.
The probiotics (7.2 billion CFU) and adaptogen blend (ashwagandha, rhodiola) are meaningful additions that Collagen Greens does not include. If gut microbiome support and stress adaptation are your primary goals, these are genuinely valuable components.
AG1 also has a longer track record, significant third-party testing, and a 90-day money-back guarantee. It is a well-made product.
Where Collagen Greens Has the Edge
The fundamental difference is what each product includes. AG1 does not contain collagen. It does not contain creatine. These are not peripheral ingredients — they are evidence-backed compounds with strong clinical research behind them for skin health, joint health, muscle preservation, and physical performance.
For anyone supplementing specifically for structural health (skin, joints, tendons) or physical performance, Collagen Greens addresses needs that AG1 simply does not. You cannot get these benefits from AG1 regardless of how comprehensive its ingredient list is.
On price: Collagen Greens at £49 per 33-serving pack works out to approximately £1.48 per serving. AG1 at £79–£119 per 30-serving pouch works out to £2.63–£3.97 per serving. To replicate Collagen Greens' collagen and creatine on top of AG1, you would need to add two further supplements to an already expensive baseline.
- 4g hydrolysed collagen — not present in AG1 at any dose
- 4g creatine monohydrate — not present in AG1 at any dose
- Lower cost per serving by a significant margin
- UK-formulated for the UK market
Collagen Greens
Collagen + Creatine + Super Greens — the UK's only 3-in-1 in one daily scoop.
60-day money-back guarantee · From £49
Who Should Choose AG1?
AG1 makes sense if your primary concerns are comprehensive vitamin and mineral coverage, probiotic support, and adaptogen-driven stress management — and collagen and creatine are not on your priority list. It is also reasonable if you want a single product that attempts to cover the widest possible nutritional base, and cost is not a major consideration.
Who Should Choose Collagen Greens?
Collagen Greens is the better choice if skin health, joint support, muscle preservation, or physical performance are among your goals — which they are for most people over 35 who are active. It is also the better value choice if cost matters, particularly if you are already supplementing collagen or creatine separately.
The combination of collagen, creatine, and greens in one product that does not appear anywhere else in the UK market is the defining reason to choose Collagen Greens.
Frequently Asked Questions
No. AG1 does not contain collagen peptides at any dose. It contains some amino acids from its protein complex, but these are not collagen-specific amino acids and do not replicate the function of collagen supplementation for skin, joint, or connective tissue outcomes.
No. AG1 does not contain creatine monohydrate or any creatine compound.
There are no safety issues with taking both together, but it would be expensive and largely redundant. A more practical approach for AG1 users who want collagen and creatine would be to switch to Collagen Greens and add a targeted probiotic supplement if gut health remains a priority.
AG1 is a high-quality product — the price reflects the breadth of its formula and extensive third-party testing. Whether it is worth it depends on your goals. For collagen and creatine benefits specifically, AG1 simply does not deliver regardless of price.
More Comparisons
The UK's Only 3-in-1 Formula
Collagen + Creatine + Super Greens
4g hydrolysed bovine collagen, 4g creatine monohydrate, and six premium super greens in one daily scoop. 60-day money-back guarantee.
Shop Collagen Greens