Magnesium & Marine Collagen Support
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
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
Marine Collagen Peptides
Renew your skin’s deep collagen layer with all the right building blocks from natural marine collagen, hydrolysed so you can absorb more.
Magnesium
Magnesium makes our muscles and nerves work properly, so it’s essential for energy and strength. It controls our blood pressure and bone health. It also plays a crucial role in supporting a healthy immune system and giving us better quality, more refreshing sleep.
Zinc
Zinc makes over 200 enzymes in the human body. It works with magnesium. It’s essential for a healthy immune system, and it makes wounds heal by supporting the creation of DNA for new body cells. It keeps our skin, hair, and nails healthy, and helps protect cells from oxidative damage.
Hyaluronic Acid & CoQ10
Hyaluronic acid is a skin-wonder that holds 1000 times its weight in water, plumping up your skin and maintaining its moisture barrier. CoQ10 is an antioxidant which supports your natural production of elastin and collagen, keeping skin looking youthful.
Iodine
Iodine helps rejuvenate your skin by boosting cell regeneration in the deep inner layers. Our iodine comes from a 35 times concentrated sea kelp extract.
Pureway® Vitamin C
Vitamin C is vital for us to build collagen correctly. PureWay-C® is a proprietary, scientifically researched form of vitamin C that contains lipid metabolites and citrus bioflavonoids for better delivery, absorption and uptake.
Vitamin D3
Our 100% vegan vitamin D3 from algae boosts magnesium absorption. Apart from healthy bones and teeth, it supports and balances the immune system, and helps regulate our mood.
Vitamin B6
The superior vitamin B6 in this supplement is the activated form, which is better absorbed and ready for the body to use. It helps us absorb magnesium, supports a positive mood, helps oxygen transport around the body and supports the process of converting food into energy.
Backed by Science
Trusted, natural and safe
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
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)
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
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
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
Researchers found that four times more magnesium can be absorbed when it’s in chelated compounds.
Intestinal magnesium absorption, Kayne LH, Lee DB
Magnesium Absorption: Mechanisms and the Influence of Vitamin D, Calcium and Phosphate Hardwick Laurie L, Jones Michael R., Brautbar Nachman, Lee David B.N.
Intestinal absorption of magnesium from food and supplements, K D Fine, C A Santa Ana, J L Porter, and J S Fordtran
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
15% of adults eat less zinc than they need.
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.
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
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
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)
- RFRobert F.Verified BuyerReviewingPro Magnesium 4 Complex for Sleep & EnergyI recommend this productRated 5 out of 5 stars1 week agoGreat product
Magnesium 4 complex is the best product I have tried in years. I suffer from afib and palpitations and having researched what could work to ease the symptoms i came across a cardiologist on the internet who suggested to take magnesium. After trying several other products and not seeing any results I decided to try this one. It has now been several months and I can report that the afib is a lot better and the palpitations have halved! If it’s heart health you need then this product is well worth a try. I sleep like a baby and don’t have the afternoon slump anymore.
The Swallow Co6 days agoHi Robert, thank you so much for your wonderful 5-star review! We're absolutely delighted to hear that our Pro Magnesium 4 Complex for Sleep & Energy has been the best product you've tried in years and has made such a significant difference to your afib and palpitations. It's fantastic that you did your research and found the guidance from the cardiologist about magnesium - it sounds like you really persevered to find the right solution for your heart health. We're thrilled that after several months you're experiencing such positive results, with your afib improving significantly and your palpitations halving. It's wonderful to hear that you're sleeping like a baby and no longer experiencing that afternoon slump - these are exactly the kind of benefits our specialised four-complex magnesium formula is designed to support. Thank you for sharing your experience, as it will be really helpful for other customers considering our Pro Magnesium for their heart health and overall wellbeing.
- ASAnna S. R.Verified BuyerReviewingPro Magnesium 4 Complex for Sleep & EnergyI recommend this productRated 5 out of 5 stars2 weeks agoBetter sleep
I take the magnesium in the evening, to help sleep and helping with vit D going to the bones. The capsule is easy to swallow.
The Swallow Co6 days agoHi Anna, thank you so much for your wonderful 5-star review! We're delighted to hear that our Pro Magnesium 4 Complex for Sleep & Energy is helping you achieve better sleep when taken in the evening. It's fantastic that you're also using it to support your vitamin D absorption for bone health - magnesium plays such an important role in helping the body utilise vitamin D effectively. We're pleased that you find the capsules easy to swallow too, as we know this makes a real difference to the daily experience of taking supplements. Thank you for choosing our Pro Magnesium and we hope you continue to enjoy these great benefits!
- JLJulia L.Verified BuyerReviewingPro Magnesium 4 Complex for Sleep & EnergyI recommend this productRated 5 out of 5 stars2 weeks agoVery happy
I was a bit worried these would t work as I’ve tried so many but the % of each essential ingredient has proved they do actually work which I’m thrilled about and will continue to use many on the market today do not have the essentials for helping to relax and sleep better.
The Swallow Co2 weeks agoHi Julia, thank you so much for your wonderful 5-star review! We're absolutely delighted to hear that our Pro Magnesium 4 Complex for Sleep & Energy has worked so well for you, especially after trying so many other products without success. It's fantastic that you've noticed the difference our carefully formulated percentages of essential ingredients make - we put a lot of research and care into ensuring our formula contains therapeutic levels of four different types of magnesium specifically designed to support relaxation and better sleep. We're thrilled that you're experiencing the benefits and will continue using the supplement!
- GOGill O.Verified BuyerReviewingPro Magnesium 4 Complex for Sleep & EnergyI recommend this productRated 5 out of 5 stars3 weeks agoSwallow swallows easily
I was struggling to get to sleep for months and months and my friend mentioned she took magnesium before going to sleep. I did some research and found Swallow Pro Magnesium 4
I’ve been taking them for a month now and have to say they are amazing.
I take them in bed whilst I’m reading and then I probably fall asleep within ten minutes of turning my lamp off instead of tossing and turning for up to 2 hours.
A Godsend! I’m about to do a repeat order!
The Swallow Co2 weeks agoHi Gill, thank you so much for your wonderful 5-star review! We're absolutely delighted to hear that our Pro Magnesium 4 Complex for Sleep & Energy has made such a positive difference to your sleep. It's fantastic that you've gone from tossing and turning for up to 2 hours to falling asleep within ten minutes - what an incredible improvement! We're thrilled that your friend's recommendation led you to find our magnesium supplement and that it's proven to be such a godsend for you. It's lovely to hear that you're planning a repeat order, and we hope you continue to enjoy those peaceful nights of restful sleep.
- AHAna H.Verified BuyerReviewingPro Magnesium 4 Complex for Sleep & EnergyI recommend this productRated 5 out of 5 stars3 weeks agoGreat mineral supplement!
I’ve been taking The Swallow Pro Magnesium 4 Complex for Sleep & Energy since November 2024, and I’m still taking it because it’s become part of my daily routine. I’ve found it helps me relax in the evenings and supports a better night’s sleep. I also feel more refreshed when I wake up and have noticed a steadier level of energy throughout the day.
I like that it contains four different forms of magnesium, and I’ve found it gentle on my stomach with no unwanted side effects. After using it consistently for well over a year, I’m happy to recommend it to anyone looking for a quality magnesium supplement to support sleep, relaxation, and overall wellbeing.
I’ll definitely continue buying these and would happily recommend them to family and friends. It’s a supplement I genuinely trust and one that has worked well for me.
The Swallow Co2 weeks agoHi Ana, thank you so much for your wonderful 5-star review! We're absolutely delighted to hear that our Pro Magnesium 4 Complex for Sleep & Energy has become such an important part of your daily routine since November 2024. It's fantastic that you've experienced all the key benefits - better relaxation in the evenings, improved sleep quality, feeling more refreshed when you wake up, and maintaining steadier energy levels throughout the day. We're also thrilled that you find our four different forms of magnesium gentle on your stomach with no unwanted side effects, as we put a lot of care into creating a formula that's both effective and well-tolerated. Your recommendation means the world to us, and we're honoured that you trust our supplement enough to recommend it to your family and friends. Thank you for being such a loyal customer - we're so pleased it continues to work well for you!