4.8
Rated 4.8 out of 5 stars
106 Reviews

Magnesium and Collagen

Nourish and regenerate your skin's dermal and hypodermal layers

22 ingredients
For Deep Tissue Cleansing, Growth and Repair

Magnesium Boosts 300+ Metabolic Functions
For Detox, Sleep and Tissue Regeneration

Marine Collagen Peptides
The Essential Building Blocks for Your Skin

CoQ10 and Hyaluronic Acid:
Deep Hydration, Elasticity and Wrinkle Smoothing

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“A few of the key standouts for this Collagen and Magnesium duo are 4 of the best forms of magnesium, 3 of the best forms of zinc and the the high-dose probiotic, which supports the gut-skin axis."
Shona Wilkinson - BSc (Hons), NTP, CNHC

Pro Magnesium 4

  • 4 times better absorption of magnesium
  • Better sleep quality when taken at bedtime
  • Activated vitamin B6 for better uptake
  • Chelated zinc for a healthier immune system 
  • Stronger muscles and healthier nerves with superior magnesium compounds
  • Zero additives

Marine Collagen Peptides

  • Fuels your body's own collagen production
  • Healthier skin from within with 2.5bn live probiotic cultures
  • Activated beauty vitamins for faster, visible results
  • Super hydration with Hyaluronic Acid
  • Supports skin’s natural moisture barrier with CoQ10
  • Zero artificial additives

Directions:

Magnesium: Take 2 capsules a day with food, ideally in the evening to enjoy better, more refreshing sleep. 

Marine Collagen: Take 2 capsules a day, with a drink or food. Ideally, take one in the morning and one in the evening.

Do not exceed the stated dose. 

Storage: Store in a cool, dry place out of direct sunlight. Keep out of the reach of children.

Caution: Contains Allergen: Fish.
This product is not suitable for vegetarians or vegans. If you are pregnant, breastfeeding, taking medication or due for surgery it is advisable to consult a GP prior to taking any supplements. Not intended for use by persons under the age of 18 years old.

Magnesium 4
300 mg of Magnesium, made up of:

  • 146 mg of Magnesium Bisglycinate
  • 25 mg Magnesium Malate
  • 14 mg Magnesium Taurate
  • 114 mg Magnesium Citrate

9 mg Zinc, made up of:

  • 3 mg Zinc Picolinate
  • 3 mg Zinc Bisglycinate
  • 3 mg Zinc Citrate

7 mg of Activated Vitamin B6 (Pyridoxal-5-Phosphate)
25 mcg of Vegan Vitamin D3 from algae

Marine Collagen Peptides

  • 1000 mg of Hydrolysed Marine Collagen Peptides (Type I collagen)
  • 100 mg of Hyaluronic Acid 
  • 50 mg of CoQ10
  • 2.5 billion CFU of Lactobacillus 
  • 66 mcg of Kelp Extract (35:1) containing Iodine
  • 60 mg of Pureway®  Vitamin C 
  • 50 mcg of Biotin (vitamin B7)
  • 11 mg of Natural Vitamin E
  • 5 mg of Zinc 
  • 500 mcg of Copper 
  • 4 mg of Riboflavin (vitamin B2)
  • 16 mcg of Selenium 
  • 15 mg of Nicotinamide (vitamin B3)
View full ingredients

Nutritional Facts

Serving Size: 2 Capsules
Servings Per Container: 30

Amount Per Serving *NRV
Marine Collagen  1000 mg **
Hyaluronic Acid  100 mg  **
Vitamin C  60 mg  75% 
Coenzyme Q10 50 mg  **
Vitamin B3  15 mg  94% 
Zinc  5 mg  50% 
Vitamin E  11 mg a-TE  92% 
Lactobacillus Acidophilus  2.5B CFU  **
Iodine  66 µg 44% 
Vitamin B2  4 mg  286% 
Copper  500 µg 50% 
Selenium  16 µg 29% 
D-Biotin 50 µg 100% 
Magnesium Blend (as Glycinate, Citrate, Malate and Taurate) 1867 mg **
Providing Elemental Magnesium 300 mg  80%
Vitamin B6  7 mg  500% 
Zinc 9 mg  90%
Vitamin D3  25 µg 500% 

*NRV = Nutrient Reference Value
** = No NRV Established

Ingredients:
Hydrolysed Marine Collagen (Fish), Vegetable Capsule Shell (HydroxyPropylMethylCellulose), Hyaluronic Acid (Sodium Hyaluronate), Vitamin-C (PureWay-C®), CoenzymeQ10 (ubiquinone), Rice Extract Blend, Nicotinamide (Vitamin B3), Zinc Citrate, Vitamin E (D-Alpha Tocopheryl Succinate), Lactobacillus, Acidophilus, Iodine from Kelp (Bladderwrack) Extract (35:1), Riboflavin (Vitamin B2), Copper Gluconate, Selenium (Sodium Selenite), D-Biotin (Vitamin B7).
Magnesium Citrate, Magnesium Bisglycinate, Vegetable Capsule Shell (Hydroxy- PropylMethylCellulose), Magnesium Taurate, Magnesium Malate, Zinc Picolinate, Zinc Bisglycinate, Vitamin B6 (Pyridoxal 5-Phosphate), Vitamin D3 from Algae, Zinc Citrate.
For allergens see ingredients in bold



Optimally Formulated Nutraceuticals

Magnesium & Collagen Designed by nutritionists

Active vitamins that work faster

The vitamins we use are activated forms, ready for your body to use. You’ll absorb much more and feel the benefit sooner.

Organic minerals so you absorb more

The magnesium and zinc in our supplements are bonded to organic molecules. You can absorb around 4 times more, and avoid tummy troubles.

Junk-Free Guarantee

Say no to artificial additives! There’s just a tiny bit of natural rice extract in the Marine Collagen capsules, which keeps the active ingredients fresh. Apart from that, both supplements contain just the active ingredients, nothing more. 

Frequently Asked Questions about Magnesium and Marine Collagen

Both supplements provide the peptides necessary to stimulate and facilitate the synthesis of collagen in our own tissues, which wear down over time. Magnesium is a mineral that, among many other functions, helps to build tissue due to its role in protein synthesis. In addition, collagen is related to bone density and helps regenerate cartilage, tendons and bones. Combining both substances enhances the properties of each.

Type 1 marine collagen most closely resembles the collagen found in human skin, making it highly effective for improving skin elasticity, hydration, and reducing wrinkles. It is also easier to absorb than other types, such as bovine or porcine collagen - ours especially so as it is enzymatically hydrolysed to make the molecules even smaller.

Yes. Collagen is a structural protein found in bone, skin, and other tissues, and magnesium plays a crucial role in bone health and collagen production. Here's how they work together: Magnesium ions can bind to collagen, stimulating osteoblasts (cells that build bone) and activating signalling pathways that promote bone growth and development. Magnesium contributes to collagen production, which is essential for maintaining skin's elasticity and firmness. It also helps protect skin against free radical damage. 

We use four different forms of magnesium—magnesium bisglycinate, magnesium citrate, magnesium malate, and magnesium taurate—to maximise absorption and target various health benefits. Each form has a unique absorption rate and role in the body. Magnesium citrate and glycinate are known for their high bioavailability and gentleness on the stomach, while magnesium malate supports muscle function and energy production. Magnesium taurate is particularly adapted to support heart health and calm the nerves.

You cannot get the full benefits of magnesium without getting your full requirement of zinc too - and they’re both surprisingly common deficiencies. Zinc works as a partner to magnesium to support many of its vital functions including immune defence, making proteins for hormones and muscle, and for helping wounds heal. Zinc also plays a crucial role with magnesium in keeping cognitive functioning active.

Swallow magnesium is specially formulated to minimise tummy upset by using a balanced blend of four magnesium types that are gentler on the digestive system, chosen for their high absorption rates. Cheap magnesium supplements can cause digestive issues, like diarrhoea or stomach upset, if they contain too much magnesium oxide which draws water into the bowels. 

We offer free delivery on all orders which takes 2-4 days. Express delivery is available for £3.95 and takes 1-2 days. For more information see our Shipping Policy

Magnesium & Marine COllagen Ingredients

What's inside

Backed by Science

Trusted, natural and safe

80 %
of your dermal skin layer is collagen type 1, also found in fish
300 +
metabolic functions are powered by magnesium and zinc
30 %
of the protein in our bodies is collagen Types 1, 2 and 3

Don't just take our word for it

Can't believe how good this collagen is

Was told abut this by a friend and I can't believe how good it is, cleared up my skin as well as improving wrinkles. It's got more vitamins than most of what you see on the market so probably good for general health.

Susan Martin, Bristol

Gentle on tummy

Taken magnesium for years, didn't get tummy trouble on this one, will stick with it.

Susan C, Worcester

Explore our products

Find your everyday essentials

Scientific Research on Magnesium & Collagen

1.

This meta-analysis of several studies concluded that higher magnesium intake is associated with better control of blood sugar levels.

Magnesium and type 2 diabetes, Mario Barbagallo and Ligia J Dominguez (Diabetes Care, 2007 (American Diabetes Association)

2.

In studies published in the British Medical Journal, of hospitalised patients with heart conditions, 42% were shown to have a magnesium deficiency. In the population as a whole, around 20% of adults have a magnesium deficiency. 

Magnesium for the prevention and treatment of cardiovascular disease James J DiNicolantonio, Jing Liu and James H O’Keefe

3.

Even a magnesium deficiency too mild to cause noticeable symptoms can increase the risk of heart related death. 

Subclinical magnesium deficiency: a principal driver of cardiovascular disease and a public health crisis, James J DiNicolantonio, James H O’Keefe, and William Wilso

4.

From a neurological standpoint, magnesium plays an essential role in nerve transmission and neuromuscular conduction. It also functions in a protective role against excessive excitation that can lead to neuronal cell death (excitotoxicity). Magnesium, a ubiquitous element that plays a fundamental role in many cellular reactions, is involved in >300 enzymatic reactions in which food is catabolized and new chemical products are formed.

The Role of Magnesium in Neurological Disorders
by Anna E. Kirkland, Gabrielle L. Sarlo and Kathleen F. Holton

5.

Researchers found that four times more magnesium can be absorbed when it’s in chelated compounds. 

Intestinal magnesium absorption, Kayne LH, Lee DB

6.

Magnesium Absorption: Mechanisms and the Influence of Vitamin D, Calcium and Phosphate Hardwick Laurie L, Jones Michael R., Brautbar Nachman, Lee David B.N.

7.

Intestinal absorption of magnesium from food and supplements, K D Fine, C A Santa Ana, J L Porter, and J S Fordtran

8.

50% of older adults have insomnia or unrefreshing sleep.

Prevalence of chronic insomnia in adult patients and its correlation with medical comorbidities, Swapna Bhaskar, D. Hemavathy, and Shankar Prasad

9.

15% of adults eat less zinc than they need. 

Zinc factsheet for health professionals, NIH

10.

A review of 11 studies found that oral collagen peptide supplements improved skin elasticity, hydration, and reduced the depth of wrinkles after 4-8 weeks of use in middle-aged women.

Oral intake of specific bioactive collagen peptides reduces skin wrinkles and increases dermal matrix synthesis, E Proksch 1, M Schunck, V Zague, D Segger, J Degwert, S Oesser, Skin Pharmacol Physiology,  2014;27(3):113-9.

11.

The tissue organisation of dermal collagen is gaining recognition for its importance in development and ageing, as well as in skin maturation processes. An analysis of 45 skin samples found that 1.5% of our collagen is lost each year on average, from the age of 20 onwards. 

Age-related dermal collagen changes during development, maturation and ageing – a morphometric and comparative study, V Marcos-Garcés, P Molina Aguilar, C Bea Serrano, V García Bustos, J Benavent Seguí, A Ferrández Izquierdo, and A Ruiz-Saurí

12.

Eating bioactive collagen hydrolysates enhance facial skin moisture and elasticity and reduce facial ageing signs in a randomised double-blind placebo-controlled clinical study. This study demonstrated that collagen hydrolysate ingestion significantly improved skin hydration and elasticity, with observable reductions in wrinkles after 12 weeks.

Ingestion of bioactive collagen hydrolysates enhance facial skin moisture and elasticity and reduce facial ageing signs in a randomised double-blind placebo-controlled clinical study, Naoki Inoue, Fumihito Sugihara, Xuemin Wang

13.

A study found that collagen peptides significantly increased bone mineral density and improved markers of bone health in postmenopausal women after 12 months of supplementation.

Specific collagen peptides improve bone mineral density and bone markers in postmenopausal women: A randomized controlled study, König, D., Oesser, S., Scharla, S., Zdzieblik, D., & Gollhofer, A. (2018)

4.8
Rated 4.8 out of 5 stars
Based on 106 reviews
Total 5 star reviews: 88 Total 4 star reviews: 14 Total 3 star reviews: 4 Total 2 star reviews: 0 Total 1 star reviews: 0
96%would recommend these products
Slide 1 selected
106 reviews
  • BL
    Barbara L.
    Verified Buyer
    Reviewing
    Pro Marine Collagen Peptides
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Pro Marine collagen Peptides

    I’m taking the capsules as advised.

    They are working fine.

  • CL
    Claudia L.
    Verified Buyer
    Reviewing
    Pro Marine Collagen Peptides
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Doing the trick

    This product seems to be doing the trick. My skin looks better, hair shinier and nails stronger! Will order more!!

    The Swallow Co
    1 month ago

    Hi Claudia, we're delighted to hear about your positive experience with our Pro Marine Collagen Peptides. It's wonderful to learn that you're noticing such comprehensive improvements across your skin, hair, and nail health with our premium supplement.

    We put considerable thought into developing our marine collagen formula to support these key aspects of beauty and wellness, and it's particularly encouraging to hear that you're experiencing these intended benefits. The visible improvements you're seeing are a testament to the quality and effectiveness of our carefully sourced collagen peptides.

    Thank you for being a valued customer and for taking the time to share your wonderful feedback. We're honoured to contribute to your wellness journey and look forward to continuing to exceed your expectations with effective, premium formulas.

    The Swallow Co

  • CM
    Cameron M.
    Verified Buyer
    Reviewing
    Pro Marine Collagen Peptides
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    First month

    As I’ve only been on the product for 1 month, to see any real changes would be highly optimistic. As the results of this product will need a few more months of consistent intake to be noticeable. But, in regards to the process of consuming the capsules, it can be quite difficult at first. Considering the pills are quite large. It can take some getting used to. The supplier has mentioned in an email that it’s possible to pour the contents of the capsule into food and drink which I find most useful.

    The Swallow Co
    1 month ago

    Hi Cameron, we're delighted to hear about your initial experience with our Pro Marine Collagen Peptides. It's wonderful to learn that you're taking such a thoughtful and realistic approach to your collagen supplementation journey.

    We put considerable thought into developing our marine collagen formula, and your understanding of the importance of consistency and patience in achieving optimal results is particularly appreciated. You're absolutely right that the most significant benefits typically emerge over several months of regular use. We're pleased that you've found our suggestion about opening the capsules helpful - this flexibility in consumption method is something we specifically considered when developing our formula.

    Thank you for being a valued customer and for taking the time to share your detailed initial feedback. We're honoured to be part of your wellness journey and look forward to continuing to exceed your expectations with effective, premium formulas.

    The Swallow Co

  • EY
    Ernest Y.
    Verified Buyer
    Reviewing
    Pro Marine Collagen Peptides
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Mr

    Collage and Probiotics helps digestion aid and better sleep

  • LW
    Linda W.
    Verified Buyer
    Reviewing
    Pro Marine Collagen Peptides
    I recommend this product
    Rated 4 out of 5 stars
    2 months ago
    Eas

    I like the Pro collagen peptides capsules. I usually have powdered form but find it inconvenient to take, whereas the capsules are easy peasy taken alongside the probiotic live cultures as recommended

    I have been taking them for only a few weeks hence 4stars. I have a good feeling about this product

    The Swallow Co
    2 months ago

    Hi Linda,

    Thank you for sharing your experience with our Pro Marine Collagen Peptides capsules. We're delighted to hear that you're finding them more convenient than powdered alternatives - we specifically designed our capsules with ease of use in mind, particularly for those who want to incorporate collagen supplementation into their daily routine without hassle.

    It's great to know you're taking them alongside our Probiotic Live Cultures, as many of our customers find this combination particularly beneficial. While you're still in the early stages of your collagen journey, we're encouraged by your positive impression of the product so far.

    Many of our customers report that the benefits of collagen supplementation become more noticeable over time as the peptides work to support their body's natural collagen production processes. Your initial good feeling about the product aligns with what we typically hear from our customers during their first few weeks.

    We truly appreciate your feedback during these early stages, and we're pleased that our capsule format is making it easier for you to maintain your daily collagen routine.

    The Swallow Co.