Best Supplements for Skin Health: What Actually Works

Your skin is the largest organ in your body, and it reflects what is happening beneath the surface. Dullness, dryness, fine lines and breakouts are often signs that something is missing from the inside, not just the outside.

Topical skincare can only do so much. The building blocks your skin needs to repair, hydrate and protect itself come from nutrients circulating in your bloodstream. That is where supplements come in.

Why Skin Health Starts From Within

Your skin renews itself roughly every 28 days. Each new layer of cells depends on a steady supply of amino acids, vitamins and minerals to form properly. When those nutrients are lacking, the results show on your face.

Factors like age, stress, UV exposure and diet all accelerate skin ageing. After the age of 25, collagen production drops by roughly 1% per year, which is why fine lines and loss of firmness tend to appear in your late twenties and thirties.

Supplements work alongside your skincare routine by supplying raw materials from the inside. Think of topical products as surface repair and supplements as the supply chain that keeps everything running underneath.

Collagen: The Foundation of Firm Skin

Collagen makes up around 75-80% of your skin's dry weight. It provides the structural framework that keeps skin firm, smooth and resilient. As natural production declines with age, supplementing can help slow that loss.

A systematic review of 19 studies found that hydrolysed collagen supplementation significantly improved skin hydration, elasticity and wrinkle depth compared to placebo (de Miranda et al., 2021, DOI: 10.1111/ics.12726). Most studies used doses of 2.5-10g daily over 8-12 weeks.

Hydrolysed collagen (also called collagen peptides) is broken down into smaller molecules that your gut can absorb more efficiently. Once absorbed, these peptides stimulate your body's own collagen-producing cells.

Our Collagen Type 1 Capsules with Vitamin C combine type 1 collagen (the most abundant type in skin) with vitamin C to support absorption. If you prefer a tastier option, our Collagen Complex Gummies are a convenient alternative.

For a deeper look at the evidence, read our full guide on whether collagen supplements actually work.

Vitamin C: The Collagen Activator

Vitamin C is not just good for your immune system. It plays a direct role in collagen synthesis, and without adequate vitamin C, your body simply cannot produce collagen properly.

Beyond collagen production, vitamin C is a potent antioxidant that neutralises free radicals caused by UV exposure and pollution. A review in the journal Nutrients confirmed that vitamin C protects against photoageing and supports skin barrier function (Pullar et al., 2017, DOI: 10.3390/nu9080866).

This is why many collagen supplements include vitamin C in the formula. The two nutrients work synergistically, with vitamin C acting as a necessary cofactor in every step of collagen formation.

Good dietary sources include peppers, strawberries, broccoli and citrus fruits. If your diet falls short, a supplement providing 80-200mg daily is enough to support skin health without the stomach upset higher doses can cause.

Hyaluronic Acid: Deep Hydration From Within

Hyaluronic acid (HA) is a molecule naturally present in your skin that can hold up to 1,000 times its weight in water. It keeps skin plump, hydrated and smooth. Like collagen, your natural HA levels decline with age.

Oral hyaluronic acid supplements have gained strong research backing in recent years. A meta-analysis found that HA supplementation significantly improved skin hydration and reduced wrinkle depth across multiple trials (Hsu et al., 2021, DOI: 10.3390/nu13061987).

Most studies used doses of 120-240mg daily for 6-12 weeks. The results showed improvements in both hydration and elasticity, particularly in participants over 30.

Our Collagen Plus Complex with Hyaluronic Acid combines both ingredients in one capsule, targeting firmness and hydration simultaneously.

Biotin: Supporting Skin Cell Renewal

Biotin (vitamin B7) is involved in fatty acid synthesis, which is essential for maintaining a healthy skin barrier. A strong skin barrier locks in moisture and keeps irritants out. When biotin levels are low, dry and flaky skin is often one of the first signs.

While severe biotin deficiency is uncommon, subclinical insufficiency is more widespread than many people realise. This can contribute to skin dryness, brittle nails and thinning hair.

The adequate intake for biotin in UK adults is 30mcg per day, though many skin-focused supplements provide higher doses of 5,000-10,000mcg. Our Biotin 10,000mcg Tablets provide a concentrated daily dose to support skin, hair and nail health.

Vitamin D: The Skin Protector

Vitamin D plays a role in skin cell growth, repair and metabolism. It helps maintain the skin barrier and supports the immune defences that protect against infection. Low vitamin D is linked to slower wound healing and increased skin inflammation.

In the UK, where sunlight is insufficient for vitamin D production from October to March, deficiency is common. Public Health England recommends a daily supplement of 10mcg (400 IU) during autumn and winter, though many adults would benefit from year-round supplementation.

Research has also explored vitamin D's role in inflammatory skin conditions. A systematic review found associations between low vitamin D levels and increased severity of conditions like eczema and psoriasis (Stanescu et al., 2021, DOI: 10.3390/nu13051511). For more on fat-soluble vitamins and absorption, see our dedicated guide.

Our Vitamin D3 Gummies are an easy way to maintain your levels throughout the year. Vitamin D is also one of the key nutrients for women's health at every age.

Omega-3 Fatty Acids: Calming Inflammation

Omega-3 fatty acids help manage inflammation throughout the body, including in the skin. They support the lipid barrier that keeps skin hydrated and are particularly useful for conditions driven by inflammation, such as acne, rosacea and eczema.

A review published in Marine Drugs found that omega-3 supplementation improved skin hydration and reduced inflammatory markers in multiple trials (Balić et al., 2020, DOI: 10.3390/md18020096). The anti-inflammatory effect of EPA in particular can help calm redness and breakouts.

Good dietary sources include oily fish, walnuts and flaxseeds. If you follow a plant-based diet, algae-based omega-3 supplements are an effective alternative.

Which Supplements Should You Start With?

For an all-in-one approach, our Hair, Skin and Nails Gummies combine several of these nutrients in a single daily serving.

Building Your Skin Supplement Routine

You do not need to take every supplement on this list. Start with one or two based on your primary skin concern, then assess after 12 weeks before adding more.

For most people, collagen with vitamin C is the strongest starting point. It targets the most common age-related changes and has the deepest research base. Add hyaluronic acid if hydration is a priority, or omega-3 if inflammation and breakouts are your main issue.

If you want a simpler approach, a combined formula can cover multiple bases. Our Skin, Hair and Nails collection includes options that bundle several skin-supporting ingredients together.

Tips for Getting the Best Results

Be patient and consistent. Skin supplements are not overnight fixes. Because skin cells take roughly a month to turn over, most studies show visible improvements at the 8-12 week mark.

Stick with your routine for at least three months before judging whether it is working. Skipping days undermines results more than choosing the wrong brand.

Take fat-soluble supplements with food. Vitamin D and omega-3s absorb significantly better when consumed alongside a meal containing healthy fats. Even a small amount of olive oil, avocado or nuts is enough.

Stay hydrated. Hyaluronic acid and collagen both depend on adequate water intake to do their job. If you are dehydrated, no supplement will compensate for that.

Protect your skin from UV damage. Supplements support repair and renewal, but they cannot undo the effects of unprotected sun exposure. Wear SPF daily alongside your supplement routine for the best results.