Your skin and hair change as you get older, and a lot of that change starts on the inside. From around the age of 25, your body makes roughly 1% less collagen each year, which is one reason fine lines, drier skin and thinner hair tend to creep in through your forties and fifties. Beauty supplements are designed to support your skin and hair from within, by topping up the specific nutrients your body uses to build collagen, keratin and a healthy skin barrier.
That gap between what your diet gives you and what your skin actually needs is where a good formula earns its place. Below you will find our full range of beauty supplements for beautiful skin, along with a clear, honest look at which nutrients matter, what the research shows, and how to choose something that fits your routine.
What are beauty supplements?
Beauty supplements are oral formulas that deliver nutrients linked to the structure and maintenance of skin, hair and nails. Most combine a hero ingredient, usually collagen, with supporting vitamins and minerals such as vitamin C, zinc, biotin and selenium. They work systemically, which means the nutrients travel through your bloodstream to the deeper layers of skin that topical creams cannot reach.
Think of it this way. A serum sits on the surface and helps the outer layer of skin. A supplement feeds the dermis, the living layer underneath, where collagen and elastin are actually made. The two do different jobs, and they work best together.
Which nutrients support skin and hair?
Not every ingredient on a beauty label does what the marketing suggests. The nutrients with the strongest, legally recognised evidence are vitamins and minerals that your body genuinely depends on to keep skin, hair and nails normal. In Great Britain, only authorised health claims can be made for these, so they give you a reliable shortlist to look for.
Vitamin C: contributes to normal collagen formation for the normal function of skin
Biotin (vitamin B7): contributes to the maintenance of normal skin and normal hair
Zinc: contributes to the maintenance of normal hair, skin and nails
Selenium: contributes to the maintenance of normal hair and nails
Riboflavin (vitamin B2): contributes to the maintenance of normal skin
Niacin (vitamin B3): contributes to the maintenance of normal skin
Copper: contributes to normal skin pigmentation
Iodine: contributes to the maintenance of normal skin
Vitamin E: contributes to the protection of cells from oxidative stress
These are the claims permitted under GB nutrition and health claims rules, so they make a sensible benchmark when you compare products. If a supplement contains meaningful amounts of these nutrients, it has a genuine basis for supporting your skin and hair, rather than leaning on a single trendy ingredient.
What does the research say about collagen for skin?
Collagen is the protein that gives skin its firmness and structure, making up around 70 to 80% of the dry weight of the dermis. As your natural production slows with age, supplementing with hydrolysed collagen peptides is one of the most studied ways to support skin from the inside.
The evidence is encouraging. A 2023 meta-analysis of 26 randomised controlled trials, involving 1,721 participants, found that hydrolysed collagen significantly improved skin hydration and elasticity compared with a placebo, with fish-sourced marine collagen showing particularly strong results for hydration. In a separate double-blind trial of women aged 45 to 60, those taking fish-derived collagen saw 24% greater wrinkle reduction than the placebo group after 12 weeks.
Marine collagen is worth singling out. Its peptides tend to be smaller than those from beef-derived sources, and some research suggests they absorb more readily, which is part of why so many skin studies use a marine source.
One honest caveat. Collagen is not a quick fix, and your body treats it as raw material rather than sending it straight to your face. The nutrients packaged alongside it, especially vitamin C, are what help your body actually put those amino acids to work.
How to choose beauty supplements for beautiful skin
If you have ever stood in a shop holding two bottles and wondered what the real difference is, you are not alone. A lot of beauty supplements look almost identical on the front and tell very different stories on the back. Here is what is worth checking.
Look at the dose, not just the ingredient list. A formula can name collagen, vitamin C and biotin and still contain tiny token amounts of each. The studies that show real skin benefits typically use around 1,000mg or more of collagen peptides daily, taken consistently for 8 to 12 weeks.
Check the form of each nutrient too. Active, body-ready forms absorb better than cheap alternatives. Vitamin C as PureWay-C, for example, is a researched form that includes lipid metabolites and citrus bioflavonoids to aid absorption. Minerals that are chelated, or in citrate forms, are gentler on digestion and easier for your body to take up.
Look for the co-factors. Collagen on its own is only part of the picture. Vitamin C is needed for your body to form collagen correctly, while zinc and biotin support normal skin and hair. A formula that brings these together is doing more than collagen taken alone.
And check what is not in there. If you have ever struggled to work out what you are actually getting from a label crowded with fillers and vague blends, a clean, clearly dosed formula makes that decision far easier. You can see exactly what you are taking, and why.
The Swallow beauty supplements range
Every Swallow beauty supplement is created by our team of qualified nutritionists and built around clinically studied doses, not marketing hype. Our beauty range won two Nourish Awards in 2025, including the Collagen category, and every batch is tested by independent UK laboratories for purity and potency.
Pro Marine Collagen Peptides
Our Pro Marine Collagen Peptides deliver 1,000mg of hydrolysed Type I marine collagen alongside 13 beauty nutrients in total. You get hyaluronic acid, which holds up to 1,000 times its weight in water to help keep skin hydrated, plus CoQ10, PureWay-C vitamin C, biotin, zinc, selenium, riboflavin, vitamin E and sea kelp-derived iodine. It is the formula to reach for if you want one complete, daily approach to skin, hair and nail support.
Skin & Hair Bundle
Your skin and your gut are more closely connected than you might think, through what scientists call the gut-skin axis. Our Skin & Hair Bundle pairs the marine collagen formula with 37.5 billion gastro-resistant live cultures, so you support skin structure and renewal from the inside out as well as the outside in. It is a good fit if you notice that digestive flare-ups and skin flare-ups tend to arrive together.
Magnesium & Collagen Support
If sleep and stress are part of your skin story, and for a lot of people in their forties and fifties they are, our Magnesium & Collagen Support bundle combines the collagen formula with our four-form magnesium complex. Better rest tends to show on your skin, so this pairing covers beauty and everyday calm in one.
How long until you see results from beauty supplements?
Most people ask this first, and the honest answer is that it takes patience. Skin renews over a cycle of several weeks, so the clinical trials that measure real change tend to run for 8 to 12 weeks. In marine collagen studies, hydration improvements often show first, around the 8-week mark, while elasticity and wrinkle changes usually appear closer to 12 weeks of daily use.
The single biggest factor is consistency. Taking your supplement every day, ideally at the same time, gives your body the steady supply of nutrients it needs. The Swallow Pro Marine Collagen Peptides formula is taken as two capsules a day, one in the morning and one in the evening, which makes it easy to build into a routine you will actually stick to.
Why choose Swallow for skin and hair supplements?
We make supplements for people who read the label and want to know exactly why each ingredient is there. Our beauty formulas use active, bioavailable nutrient forms for better absorption, are manufactured in GMP-certified UK facilities, and are tested by independent laboratories for contaminants and potency. Every order is backed by our 6-month money-back guarantee and free UK delivery, so you can try them with nothing to lose but the few weeks it takes to see results.
Browse the full range below to find the formula that fits your skin, your hair and your routine.
