Not all greens powders are equal. Some contain 75+ ingredients at doses too small to do anything. Others are concentrated and targeted but narrow in scope. The best choice depends entirely on what you actually want from a greens supplement.
We have assessed each product below on three criteria: ingredient quality and dose transparency, what clinical evidence supports the formula, and overall value for money. We have tried to be honest about what each product does well — including competitors.
What to Look For
Dose transparency
Proprietary blends hide individual ingredient doses behind a total weight. Look for products that list each ingredient's dose — you cannot evaluate efficacy without this.
Clinically relevant doses
Many greens products contain exciting-sounding ingredients at sub-therapeutic doses. Check whether key ingredients (spirulina, chlorella, collagen, creatine) are included at doses used in clinical research.
What the formula actually does
Is it a general greens supplement? A comprehensive nutritional product? A targeted 3-in-1? Understand the product's intent before evaluating whether it serves your goals.
Third-party testing
Look for GMP-certified manufacturing, Informed Sport certification (if you are subject to anti-doping), or other third-party quality assurance.
Our 4 Best Picks
Collagen Greens by Lean Greens
The only UK greens powder that includes collagen and creatine
Price: £49 for 33 servings (£1.48/serving)
Pros
- ✓Unique 3-in-1: greens + 4g collagen (Types I & III) + 4g creatine in one serving
- ✓Full dose transparency — no proprietary blends
- ✓DigeZyme® digestive enzyme blend for absorption
- ✓UK-formulated, 60-day money-back guarantee
- ✓Most cost-effective per serving when replacing 3 supplements
Cons
- —No probiotics or adaptogens
- —Not vegan (contains bovine collagen)
- —Greens blend is focused (6 ingredients) rather than exhaustive
Our Verdict
The most distinctive greens powder in the UK market. If you want the benefits of collagen and creatine alongside your greens — three evidence-backed supplements with no ingredient overlap — Collagen Greens delivers all three in one serving at a price that undercuts buying them separately. The trade-off is no probiotics and no adaptogen complex.
AG1 by Athletic Greens
The broadest ingredient list on the market — but at a significant price
Price: £79–£119 for 30 servings (£2.63–£3.97/serving)
Pros
- ✓75+ ingredients — the most comprehensive formula in this category
- ✓7.2 billion CFU probiotics included
- ✓Adaptogen complex (ashwagandha, rhodiola)
- ✓Extensive third-party testing
- ✓90-day money-back guarantee
Cons
- —No collagen — none at any dose
- —No creatine
- —Most expensive in the category at £2.63–£3.97 per serving
- —Some ingredients in proprietary blend (dose not fully disclosed)
- —Made in the USA (not UK)
Our Verdict
AG1 is the benchmark comprehensive greens supplement. If gut health (probiotics) and stress adaptation (adaptogens) are your primary goals, it covers more ground than any competitor. The significant drawbacks are cost and the absence of collagen and creatine — two of the most evidence-backed supplements for adults over 30.
Bulk Greens Powder
Functional greens at a low price point — without the extras
Price: ~£15–£25 for 30 servings (~£0.50–£0.83/serving)
Pros
- ✓Very low price per serving
- ✓Decent spirulina and chlorella content
- ✓UK-based company with good manufacturing standards
- ✓Multiple flavour options
Cons
- —No collagen, no creatine
- —Smaller ingredient range than premium products
- —No probiotics
- —Some doses not individually disclosed
Our Verdict
A solid budget greens option for anyone who specifically wants a greens supplement and nothing else. Does not offer the broader nutritional support of premium options. If collagen and/or creatine are on your radar, buying Bulk Greens plus separate collagen and creatine supplements will cost more than Collagen Greens.
MyProtein Essential Greens
A straightforward entry-level greens powder
Price: ~£15–£20 for 30 servings (~£0.50–£0.67/serving)
Pros
- ✓Very affordable entry point
- ✓Widely available and trusted brand
- ✓Some SKUs are Informed Sport certified
- ✓Low commitment choice for greens beginners
Cons
- —No collagen, no creatine
- —Basic formula — limited functional depth
- —Proprietary blend obscures individual doses
Our Verdict
A reasonable first step into greens supplementation. Not the product for anyone with specific health goals around skin, joints, or performance. Its advantage is low price and easy availability.
Our Verdict
For most adults in the UK looking for a greens supplement that genuinely earns its place in a morning routine, the choice comes down to what else you want it to do. If you want the broadest possible formula with probiotics and adaptogens and are willing to pay the premium: AG1. If you want collagen, creatine, and targeted greens at better value: Collagen Greens. If you just want affordable green nutrition with no extras: Bulk or MyProtein.
For anyone over 30 who is not already supplementing collagen and creatine separately, Collagen Greens offers a clear argument: three evidence-backed supplements in one product at less than the cost of buying them individually.
Frequently Asked Questions
The best greens powder depends on your goals. For comprehensive nutrition including probiotics and adaptogens: AG1. For collagen, creatine, and greens in one product: Collagen Greens. For budget greens supplementation only: Bulk Greens or MyProtein Essential Greens.
For people who struggle to maintain a consistently varied diet with adequate vegetables and phytonutrients, a quality greens powder can meaningfully support micronutritional intake. They are not a substitute for whole vegetables, but they are a practical supplement for real diets. Products that also include collagen and/or creatine offer significantly more functional value.
Greens powder ingredients — particularly spirulina and chlorella — have meaningful clinical evidence for antioxidant activity, inflammation modulation, and micronutritional support. The quality and dose of active ingredients determines whether a specific product delivers those benefits.
Yes — greens powders designed for daily use (like all products listed here) are intended to be taken daily. Consistent daily use over weeks and months produces the most meaningful nutritional benefit.
More Guides
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