8 Best Vitamins and Supplements for Dry Skin

Dry skin can be caused by a number of factors, including dehydration, aging, seasonal changes, allergies, and micronutrient deficiencies.

Depending on the cause of your dry skin, different treatment methods, including medicated ointments and moisturisers, may be used to increase skin hydration.

Additionally, lifestyle modifications, such as drinking more water and taking certain supplements, may improve skin dryness.

Here are 8 vitamins and supplements for dry skin.

1. Vitamin D

Vitamin D is a fat-soluble vitamin that’s critical for many aspects of health, including the health of your skin.

Keratinocytes are skin cells that make up the majority of the outer layer of your skin, known as the epidermis.

Keratinocytes are the only cells in your body that can form vitamin D from its precursor 7-Dehydrocholesterol (7-DHC) and turn it into a form that your body can use.

Vitamin D plays an integral role in skin barrier function and skin cell growth, as well as maintaining the skin immune system, which acts as a first line of defence against harmful pathogens.

Some research has shown that low blood levels of vitamin D are associated with skin conditions, including eczema and psoriasis — both of which can cause dry skin.

Additionally, vitamin D supplements have been shown to significantly improve symptoms of skin disorders that cause dry, itchy skin, including eczema.

What’s more, research has indicated a correlation between vitamin D and skin moisture.

A study in 83 women found that those who had low vitamin D levels had lower average skin moisture than participants who had normal vitamin D levels, and that as blood levels of vitamin D increased, skin moisture content increased as well.

Another small 12-week study in 50 women observed that daily treatment with a nutritional supplement containing 600 IU of vitamin D led to significant improvements in skin hydration.

However, the supplement contained a combination of nutrients, so it’s unclear whether treatment with vitamin D alone would have resulted in the same positive outcome.

A large percentage of the population is deficient in vitamin D, and given that the nutrient is essential for skin hydration, supplementing with it may help combat dry skin.



Collagen is the most abundant protein in your body and accounts for 75% of your skin’s dry weight.

Some research has shown that taking collagen-based supplements may have a range of benefits for your skin, including decreasing wrinkle depth and increasing skin hydration.

A study in 69 women found that participants who consumed 2.5–5 grams of collagen per day for 8 weeks had significant improvements in skin elasticity and also experienced increased skin hydration, compared with a placebo group.

A 2019 review of 11 studies concluded that taking 2.5–10 grams of oral collagen supplements per day for 4–24 weeks increased skin hydration and treated xerosis, a medical term for dry skin.

3.Vitamin C 

Vitamin C acts as a powerful, skin-protective antioxidant and is essential for collagen production, making it an important nutrient for skin health.

In fact, the skin contains very high levels of vitamin C, with some research finding a concentration of up to 64 mg of vitamin C per 100 grams of the epidermal skin layer.

Unsurprisingly, studies have shown that increasing dietary vitamin C through vitamin C supplements may improve many factors of skin health, including skin hydration.

Some test-tube studies have found that vitamin C may enhance skin barrier function and help reduce water loss, which may help prevent dry skin.

Plus, some studies have shown that when used in combination with other nutrients, vitamin C may help enhance skin moisture.

For example, a 6-month study in 47 men demonstrated that taking a supplement that contained 54 mg of vitamin C, as well as marine protein and a combination of other nutrients, significantly improved skin hydration, compared with a placebo group.

Other studies in women have shown similar results.

Regardless, based on the most current research, supplementing with vitamin C may improve overall skin health and help combat dry skin.

4. Fish oil

Fish oil is well known for its skin-health-promoting properties.

It contains docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), two essential fatty acids that have powerful anti-inflammatory and healing properties and have been shown to benefit the skin in many ways.

Dietary supplements with fish oil may help boost skin hydration and improve the fatty acid barrier of the skin, which helps maintain hydration.

A 90-day study in rats with acetone-induced dry skin found that high-dose oral fish oil supplements significantly increased skin hydration, reduced water loss, and resolved dryness-related skin itching, compared with rats that didn’t receive the fish oil.

In fact, the study noted that the fish oil group had a 30% increase in skin hydration after 60 days of treatment.

Additionally, research indicates that daily treatment with doses of fish oil ranging from 1–14 grams of EPA and 0–9 grams DHA for 6 weeks to 6 months improved symptoms of psoriasis — a chronic, inflammatory skin disease — including scaling or dry, cracked skin.

Fish oil has also been shown to decrease skin inflammation and protect against sun damage, making it an all around skin-friendly supplement.

5–8. Other supplements for treating dry skin

In addition to the nutrients listed above, studies have shown that supplementing with several other compounds may be an effective way to improve skin moisture.

  1. Probiotics. A study found that supplementing both mice and humans with Lactobacillus plantarum bacteria improved skin barrier function and skin hydration after 8 weeks.
  2. Hyaluronic acid. Hyaluronic acid is often used topically to improve skin hydration, but recent research shows that ingesting this compound in combination with other nutrients may significantly increase skin hydration.
  3. Aloe vera. A study in 64 women found that supplementing with fatty acids derived from aloe vera for 12 weeks significantly improved skin moisture and skin elasticity, compared with a placebo.
  4. Ceramides. Ceramides are fat molecules that are important components of healthy skin. Some research has shown that supplementing with ceramides may increase skin hydration, which may help treat dry skin.

Some research suggests that the supplements listed above may help enhance skin moisture and treat dry skin.

However, more research is needed before these compounds can be recommended as effective ways to naturally relieve dry skin.

References: https://www.healthline.com/nutrition/vitamins-for-dry-skin