Collagen

Collagen supplements compared against 10 g of hydrolysed collagen a day — the dose used in the joint and skin trials the marketing on these packs rests on. There is no Nutrient Reference Value for collagen, so unlike the vitamin categories this figure comes from clinical use rather than regulation.

This is the category where dose separates products most sharply, and it separates them by format. Every powder and liquid here reaches at least half the reference dose and most reach all of it. Every capsule, tablet and gummy falls between 1.5% and 24% of it — not because they are cheaper, but because 10 g of powder is two tablespoons and will not fit in a capsule. A gummy at 150 mg a serving would need roughly 133 gummies a day to match one scoop of powder.

Compare on cost per gram of collagen, never on pack price or cost per serving. The headline price is close to meaningless here: the most expensive pack in this comparison is mid-table per gram, while some of the cheapest packs are the dearest per gram by a factor of forty. Watch, too, for pack fronts quoting a figure that is the sum of every active in the formula rather than the collagen alone, and for multi-source blends advertising five collagen types where four of them are present in single-milligram amounts.

Not medical advice

This compares label amounts against published reference doses. It is information, not advice, and it is not personalised. Consult a healthcare professional before starting, stopping or combining supplements — particularly if you take prescription medication.

Side by side

Comparison

Product	At full dose	Hydrolysed Collagen per day	Band	Cost per full dose	Days supply
Collagen & Vitamin C Powder 500g Bulk	1 of 2	15000 mg	Full dose	£0.320	33.3 days
Premium Gold Pure Collagen Hydrolysate Powder 500g Nutravita	1 of 1	10000 mg	Full dose	£0.380	50 days
Pure Hydrolysed Collagen Peptides Powder 500g VitaBright	1 of 1	10000 mg	Full dose	£0.380	50 days
Gold Standard Pure Collagen Hydrolysate Powder 400g Wellgard	1 of 1	13000 mg	Full dose	£0.500	30.8 days
Bovine Collagen Powder 400g Edible Health	1 of 1	13000 mg	Full dose	£0.575	30.8 days
Collagen Peptides Powder 587g Vital Proteins	1 of 1	20000 mg	Full dose	£0.579	29.4 days
Collagen Powder Strawberry & Raspberry 5000mg Applied Nutrition	1 of 4	5000 mg	Underdosed	£0.667	30 days
Bovine Collagen Peptides Powder 400g Hunter & Gather	1 of 1	13000 mg	Full dose	£0.700	30.8 days
Collagen Hydrolysate Powder 300g Primal Harvest	1 of 1	10000 mg	Full dose	£1.17	30 days
High Strength Marine Collagen Liquid 10000mg Reverse Life	4 of 6	10000 mg	Full dose	£1.25	20 days
system Kollagen 11000 Plus Ampoules Doppelherz	1 of 6	11000 mg	Full dose	£1.27	30 days
Multi Collagen I II III V X 2400mg Revive Naturals	2 of 4	2400 mg	Fairy dust	£1.39	45 days
True Collagen Powder 200g Ancient + Brave	0 of 1	5000 mg	Underdosed	£1.60	40 days
Multi Collagen I II III V X 1650mg N2 Natural Nutrition	0 of 2	1100 mg	Fairy dust	£2.01	90 days
Pure Marine Collagen Capsules 1200mg WeightWorld	0 of 1	1200 mg	Fairy dust	£2.22	60 days
Marine Collagen Capsules 2200mg SuperSelf	1 of 3	2200 mg	Fairy dust	£2.40	30 days
Pure Marine Collagen Type I Capsules New Leaf Products	2 of 4	1060 mg	Fairy dust	£3.14	30 days
Super Strength Marine Collagen Complex 1000mg Healthspan	0 of 4	800 mg	Fairy dust	£4.07	60 days
Collagen Gummies Strawberry Free Soul	0 of 1	150 mg	Fairy dust	£22.20	30 days
Plant Collagen Daily Beauty Blend 150g Rheal	1 of 2	Not stated	Not present	Not stated	30 days

Every product

What's actually in them

Ingredient	On the label	Per day	Reference	Ratio	Band
	PER 15 g SERVING	15000 mg	10000 mg	1.5×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak
	24 mg per 15g serving (30% RI)	24 mg	80 mg	0.3×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 80 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026 Evidence Strong

The label states a range of servings. These figures use the lowest, so the daily amounts are not flattered by assuming the largest serving allowed.

Days supply

33.3 days

Cost per day

£0.480

Cost per full dose

£0.320

Price

£15.99

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	10g per 10g daily dose	10000 mg	10000 mg	1×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak

The label states a range of servings. These figures use the lowest, so the daily amounts are not flattered by assuming the largest serving allowed.

Days supply

50 days

Cost per day

£0.380

Cost per full dose

£0.380

Price

£18.99

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	Per 10 g serving	10000 mg	10000 mg	1×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak

The label states a range of servings. These figures use the lowest, so the daily amounts are not flattered by assuming the largest serving allowed.

Days supply

50 days

Cost per day

£0.380

Cost per full dose

£0.380

Price

£18.99

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	Serving size 13g (Approx. 2 Tbsp)	13000 mg	10000 mg	1.3×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak

Days supply

30.8 days

Cost per day

£0.650

Cost per full dose

£0.500

Price

£19.99

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	Dosage: 13,000mg Per Serving (13g)	13000 mg	10000 mg	1.3×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak

Days supply

30.8 days

Cost per day

£0.747

Cost per full dose

£0.575

Price

£22.99

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	20 g per 4 Tbsp (20g) serving	20000 mg	10000 mg	2×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak

Days supply

29.4 days

Cost per day

£1.16

Cost per full dose

£0.579

Price

£33.99

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	5 g per 5.5g scoop	5000 mg	10000 mg	0.5×	Underdosed
The daily amount is at least half the published reference dose, but below it. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak
	50 mg per 5.5g scoop	50 mg	Not stated	—	No reference
No published reference dose was found for this ingredient, so it cannot be compared. Source No established oral reference intake— checked 6 Aug 2026 Evidence Weak
	80 mg (100% RI)	80 mg	80 mg	1×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 80 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026 Evidence Strong
	7.5 µg (15% RI)	7.5 mcg	50 mcg	0.15×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 50 mcg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026 Evidence Strong Timing High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

The label states a range of servings. These figures use the lowest, so the daily amounts are not flattered by assuming the largest serving allowed.

Days supply

30 days

Cost per day

£0.333

Cost per full dose

£0.667

Price

£10.00

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	13.000MG COLLAGEN PER SERVE (13g serving)	13000 mg	10000 mg	1.3×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak

Days supply

30.8 days

Cost per day

£0.910

Cost per full dose

£0.700

Price

£28.00

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	100g/10g (**No NRV)	10000 mg	10000 mg	1×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak

Days supply

30 days

Cost per day

£1.17

Cost per full dose

£1.17

Price

£34.99

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	10,000mg per 25ml serving	10000 mg	10000 mg	1×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak
	50mg per 25ml serving	50 mg	Not stated	—	No reference
No published reference dose was found for this ingredient, so it cannot be compared. Source No established oral reference intake— checked 6 Aug 2026 Evidence Weak
	120mg (150% NRV)	120 mg	80 mg	1.5×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 80 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026 Evidence Strong
	10 mcg (200% NRV)	10 mcg	10 mcg	1×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 10 mcg (recommended daily allowance) Source SACN Vitamin D and Health report, July 2016— checked 5 Aug 2026 Upper limit 100 mcg Evidence Strong Timing Fat-soluble - absorbed best with a meal containing fat.
	50 mcg (100% NRV)	50 mcg	50 mcg	1×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 50 mcg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026 Evidence Strong Timing High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.
	2mg (20% NRV)	2 mg	10 mg	0.2×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 10 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026 Upper limit 25 mg Evidence Strong

Vitamin D with Orlistat
Vitamin D with Anti-seizure drugs

Days supply

20 days

Cost per day

£1.25

Cost per full dose

£1.25

Price

£24.99

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	11 g pro Trinkfläschchen	11000 mg	10000 mg	1.1×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak
	100 mg pro Trinkfläschchen	100 mg	1200 mg	0.08×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 1200 mg (dose used in clinical trials) Source GAIT trial 2006 - chondroitin sulphate 400 mg three times daily— checked 6 Aug 2026 Evidence Moderate
	60 mg pro Trinkfläschchen	60 mg	80 mg	0.75×	Underdosed
The daily amount is at least half the published reference dose, but below it. Reference dose 80 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026 Evidence Strong
	5 µg pro Trinkfläschchen	5 mcg	10 mcg	0.5×	Underdosed
The daily amount is at least half the published reference dose, but below it. Reference dose 10 mcg (recommended daily allowance) Source SACN Vitamin D and Health report, July 2016— checked 5 Aug 2026 Upper limit 100 mcg Evidence Strong Timing Fat-soluble - absorbed best with a meal containing fat.
	0,3 mg pro Trinkfläschchen	0.3 mg	1 mg	0.3×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 1 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026 Evidence Strong
	16,5 µg pro Trinkfläschchen	16.5 mcg	55 mcg	0.3×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 55 mcg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026 Upper limit 300 mcg Evidence Strong

Vitamin D with Orlistat
Vitamin D with Anti-seizure drugs

Days supply

30 days

Cost per day

£1.40

Cost per full dose

£1.27

Price

£41.99

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	2,400mg (** No NRV established)	2400 mg	10000 mg	0.24×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak
	120mg (** No NRV established)	120 mg	Not stated	—	No reference
No published reference dose was found for this ingredient, so it cannot be compared. Source No established oral reference intake— checked 6 Aug 2026 Evidence Weak
	80mg (100% NRV)	80 mg	80 mg	1×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 80 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026 Evidence Strong
	50µg (100% NRV)	50 mcg	50 mcg	1×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 50 mcg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026 Evidence Strong Timing High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply

45 days

Cost per day

£0.333

Cost per full dose

£1.39

Price

£14.99

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	100% of a 5g serving	5000 mg	10000 mg	0.5×	Underdosed
The daily amount is at least half the published reference dose, but below it. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak

The label states a range of servings. These figures use the lowest, so the daily amounts are not flattered by assuming the largest serving allowed.

Days supply

40 days

Cost per day

£0.800

Cost per full dose

£1.60

Price

£32.00

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	1100 mg per 2 capsules (daily dose)	1100 mg	10000 mg	0.11×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak
	53,3 mg per 2 capsules (66,62% NRV)	53.3 mg	80 mg	0.67×	Underdosed
The daily amount is at least half the published reference dose, but below it. Reference dose 80 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026 Evidence Strong

The label also prints these lines. They describe how the amounts above are made up — a salt weight, or a breakdown of a total — so they are not counted again as ingredients of their own.

Hydrolysed bovine collagen Type I, III— 997.8 mg per 2 capsules
Hydrolysed marine collagen PEPTAN (fish) Type I— 100 mg per 2 capsules
ESM free-range egg membrane, contains collagen Type I, V, X— 3.14 mg egg membrane of which 0.785 mg collagen per 2 capsules
Hydrolysed chicken collagen Type II— 1.4 mg per 2 capsules

Days supply

90 days

Cost per day

£0.221

Cost per full dose

£2.01

Price

£19.87

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	1200mg (NRV Not Established)	1200 mg	10000 mg	0.12×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak

Days supply

60 days

Cost per day

£0.267

Cost per full dose

£2.22

Price

£15.99

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	2200 mg (**NRV Not Established)	2200 mg	10000 mg	0.22×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak
	120 mg (**NRV Not Established)	120 mg	Not stated	—	No reference
No published reference dose was found for this ingredient, so it cannot be compared. Source No established oral reference intake— checked 6 Aug 2026 Evidence Weak
	80 mg (100% NRV)	80 mg	80 mg	1×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 80 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026 Evidence Strong

Days supply

30 days

Cost per day

£0.528

Cost per full dose

£2.40

Price

£15.83

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	1060mg (** No RI established)	1060 mg	10000 mg	0.11×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak
	100mg (** No RI established)	100 mg	Not stated	—	No reference
No published reference dose was found for this ingredient, so it cannot be compared. Source No established oral reference intake— checked 6 Aug 2026 Evidence Weak
	80mg (100% RI)	80 mg	80 mg	1×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 80 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026 Evidence Strong
	150µg (300% RI)	150 mcg	50 mcg	3×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 50 mcg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026 Evidence Strong Timing High-dose biotin interferes with some laboratory blood tests, including thyroid and troponin assays, which can produce misleading results. Tell your doctor you take it before any blood test.

Days supply

30 days

Cost per day

£0.332

Cost per full dose

£3.14

Price

£9.97

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	800mg	800 mg	10000 mg	0.08×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak
	12mg (15% NRV)	12 mg	80 mg	0.15×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 80 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026 Evidence Strong
	0.25mg (25% NRV)	0.25 mg	1 mg	0.25×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 1 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026 Evidence Strong
	0.50mg (25% NRV)	0.5 mg	2 mg	0.25×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 2 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 12 Aug 2026 Evidence Strong

The label also prints these lines. They describe how the amounts above are made up — a salt weight, or a breakdown of a total — so they are not counted again as ingredients of their own.

Chicken Collagen Peptides Type II— 200mg

Days supply

60 days

Cost per day

£0.326

Cost per full dose

£4.07

Price

£19.54

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	150mg per 2 Gummies	150 mg	10000 mg	0.02×	Fairy dust
The daily amount is less than half the published reference dose. Reference dose 10000 mg (dose used in clinical trials) Source Joint trials typically use 10 g/day of hydrolysed collagen— checked 6 Aug 2026 Evidence Weak

Days supply

30 days

Cost per day

£0.333

Cost per full dose

£22.20

Price

£9.99

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Ingredient	On the label	Per day	Reference	Ratio	Band
	142 mg per 5g serving (177.5% RI)	142 mg	80 mg	1.78×	Full dose
The daily amount meets or exceeds the published reference dose. Reference dose 80 mg (recommended daily allowance) Source EU NRV (Regulation 1169/2011 Annex XIII)— checked 6 Aug 2026 Evidence Strong

The label also prints these lines. They describe how the amounts above are made up — a salt weight, or a breakdown of a total — so they are not counted again as ingredients of their own.

Astrion Extract— 250mg Astrion per serving
Organic Pea Protein Powder

Amounts not disclosed

The label does not say how much of these the product contains, so they cannot be compared against any reference dose: Silica.

The label states a range of servings. These figures use the lowest, so the daily amounts are not flattered by assuming the largest serving allowed.

Days supply

30 days

Cost per day

£1.00

Cost per full dose

Not stated

Price

£30.00

Amazon, 7 Aug 2026

Label captured 7 Aug 2026 (version 1).

Collagen

Not medical advice

Comparison

What's actually in them

Collagen & Vitamin C Powder 500gBulk 1 of 2 ingredients at full dose Cost per full dose: £0.320 Days supply: 33.3 days

Premium Gold Pure Collagen Hydrolysate Powder 500gNutravita 1 of 1 ingredients at full dose Cost per full dose: £0.380 Days supply: 50 days

Pure Hydrolysed Collagen Peptides Powder 500gVitaBright 1 of 1 ingredients at full dose Cost per full dose: £0.380 Days supply: 50 days

Gold Standard Pure Collagen Hydrolysate Powder 400gWellgard 1 of 1 ingredients at full dose Cost per full dose: £0.500 Days supply: 30.8 days

Bovine Collagen Powder 400gEdible Health 1 of 1 ingredients at full dose Cost per full dose: £0.575 Days supply: 30.8 days

Collagen Peptides Powder 587gVital Proteins 1 of 1 ingredients at full dose Cost per full dose: £0.579 Days supply: 29.4 days

Collagen Powder Strawberry & Raspberry 5000mgApplied Nutrition 1 of 4 ingredients at full dose Cost per full dose: £0.667 Days supply: 30 days

Bovine Collagen Peptides Powder 400gHunter & Gather 1 of 1 ingredients at full dose Cost per full dose: £0.700 Days supply: 30.8 days

Collagen Hydrolysate Powder 300gPrimal Harvest 1 of 1 ingredients at full dose Cost per full dose: £1.17 Days supply: 30 days

High Strength Marine Collagen Liquid 10000mgReverse Life 4 of 6 ingredients at full dose Cost per full dose: £1.25 Days supply: 20 days

system Kollagen 11000 Plus AmpoulesDoppelherz 1 of 6 ingredients at full dose Cost per full dose: £1.27 Days supply: 30 days

Multi Collagen I II III V X 2400mgRevive Naturals 2 of 4 ingredients at full dose Cost per full dose: £1.39 Days supply: 45 days

True Collagen Powder 200gAncient + Brave 0 of 1 ingredients at full dose Cost per full dose: £1.60 Days supply: 40 days

Multi Collagen I II III V X 1650mgN2 Natural Nutrition 0 of 2 ingredients at full dose Cost per full dose: £2.01 Days supply: 90 days

Pure Marine Collagen Capsules 1200mgWeightWorld 0 of 1 ingredients at full dose Cost per full dose: £2.22 Days supply: 60 days

Marine Collagen Capsules 2200mgSuperSelf 1 of 3 ingredients at full dose Cost per full dose: £2.40 Days supply: 30 days

Pure Marine Collagen Type I CapsulesNew Leaf Products 2 of 4 ingredients at full dose Cost per full dose: £3.14 Days supply: 30 days

Super Strength Marine Collagen Complex 1000mgHealthspan 0 of 4 ingredients at full dose Cost per full dose: £4.07 Days supply: 60 days

Collagen Gummies StrawberryFree Soul 0 of 1 ingredients at full dose Cost per full dose: £22.20 Days supply: 30 days

Plant Collagen Daily Beauty Blend 150gRheal 1 of 2 ingredients at full dose Cost per full dose: Not stated Days supply: 30 days

Amounts not disclosed