Collagen drinks for firmer skin, biotin for stronger hair, or vitamin supplements for more glow: beauty supplements have long been an integral part of the beauty market. But does our skin actually need dietary supplements – and does "more is better" really apply to vitamins and minerals? The current issue of WOMAN magazine addresses these questions.

In the article "Inner Glow – What supplements for skin & hair really achieve," among others, Dr. Tanja Pisec-Weihena general practitioner specializing in preventive care and orthomolecular medicine at the JUVENIS Medical Center in Vienna, assesses the trend from a medical perspective. The most important message: dietary supplementation should be targeted and based on actual needs.

Beauty also comes from within – but not from every capsule

Our skin relies on an adequate supply of protein, vitamins, minerals, and fatty acids. If certain nutrients are missing, this can also become noticeable externally. However, simply taking various beauty supplements on suspicion is not automatically sensible.
Dr. Tanja Pisec-Weihen emphasizes in the WOMAN article: "Check first, then swallow."

Before investing in dietary supplements, it should first be clarified whether a deficiency exists at all.

Test first, then supplement selectively

Which tests are useful depends on symptoms, diet, life stage and any pre-existing conditions.
A routine blood test does not automatically answer all questions. Depending on symptoms, additional tests may be useful.

Dr. Pisec-Weihen mentions the following in the article:

  • Iron status
  • Vitamin D
  • Vitamin B12
  • Zinc
  • Thyroid function tests

In cases of menstrual cycle disorders, unusual hair loss or other specific complaints, further examinations may be indicated. For skin problems, Dr. Pisec-Weihen also recommends, where appropriate, combining laboratory values with a dermatological examination. This makes it easier to distinguish whether there is actually a nutrient deficiency or whether, for example, hormonal changes, an autoimmune disease, stress or other factors are behind the complaints.

More vitamins do not automatically mean more beautiful skin

A central point of the article: dietary supplements can be useful when a diagnosed deficiency is to be corrected. Without a corresponding deficiency, however, increased intake does not automatically lead to more beautiful skin or stronger hair. On the contrary: excessive dosing of supplements can also be problematic.
Particularly with fat-soluble vitamins such as vitamins A, D, E and K, caution is advised because they can be stored in the body. Minerals should also not be taken according to the 'more is better' principle.

Which nutrients are relevant for skin and hair?

The WOMAN article takes a closer look at various commonly used beauty nutrients:

  • Vitamin C supports, among other things, the body's own collagen production and acts as an antioxidant.
  • Zinc plays a role in cell metabolism, wound healing and the normal function of the skin and the immune system. However, additional intake, especially at higher doses, should not be undertaken indiscriminately.
  • Omega-3 fatty acids can have anti-inflammatory effects and support the skin barrier. They can be particularly relevant for dry and sensitive skin.
  • Collagen is an important component of the skin and connective tissue. The article notes that some studies show improvements in skin hydration and elasticity for hydrolyzed collagen peptides. Product, dosage and duration of use are decisive.
  • Biotin is often promoted as a "beauty vitamin". A true biotin deficiency can affect hair and nails – however, without a proven deficiency, additional supplementation is not automatically advisable.
  • Also Astaxanthin, a carotenoid with antioxidant properties, is discussed. However, according to the article, the body of evidence is still evolving.

Beware of "Beauty Stacking"

Another trend is the so-called beauty stacking: multiple products are combined at the same time – for example multivitamins, collagen, individual vitamins and additional beauty complexes. This can lead to overlapping ingredients. The seemingly harmless combination of different products can therefore result in certain nutrients being consumed in substantially higher amounts than intended. This can be particularly problematic, for example, with fat‑soluble vitamins or certain minerals. For that reason, it's advisable to keep track of all supplements taken, including their dosages.

The Biotin effect: more isn't necessarily better

Biotin is one of the most popular ingredients in products for skin, hair and nails. But the same applies here: a deficiency should ideally be identified first.
Another important point: higher biotin doses can distort certain laboratory values. Therefore, intake should definitely be disclosed during medical examinations.

External care and internal nourishment go hand in hand

The WOMAN article also makes clear: skincare and nutrition or supplementation serve different purposes. Serums and creams can act specifically at the skin's surface, bind moisture and support the skin barrier. Nutrients, on the other hand, are supplied through the body and are available for numerous metabolic and regenerative processes. Therefore it's not an either-or, but two different approaches. At the same time, supplements do not replace a balanced diet, appropriate skincare, or medically necessary treatment.

No instant glow

Those who take dietary supplements should not expect results overnight.
Skin, hair and nails take time. Changes should therefore be assessed over weeks and months rather than a few days.
Instead of constantly trying new preparations, the article recommends a targeted and transparent approach.

Dr. Tanja Pisec-Weihen at JUVENIS: Individualized instead of a one-size-fits-all approach

The crucial question is therefore not: Which beauty supplement is currently trending? But rather: What does my body actually need?
At JUVENIS, Dr. Tanja Pisec-Weihen follows a medically grounded approach. Complaints, diet, life situation and possible deficiencies are considered individually. If necessary, appropriate laboratory tests can help assess the body's levels of selected vitamins and minerals more precisely. This can help avoid taking various dietary supplements at random — and instead target the areas where there is an actual need.

Conclusion: Check first, then supplement

Beauty supplements can be a sensible addition — if there is a specific need and the product and dosage are appropriate.
They are, however, no substitute for a balanced diet, adequate sleep, exercise, sun protection, and skin care tailored to your skin type.
The most important recommendation from the WOMAN article is therefore aptly summed up by Dr. Tanja Pisec-Weihen:
“Check first, then swallow.”

Because genuine “Inner Glow” doesn’t come from taking as many capsules as possible, but from nourishment that truly matches the body’s individual needs.

The article can be read online here with a Woman subscription:“Inner Glow – What Supplements Really Do for Skin & Hair”

Exclusively, you can read the article here at JUVENIS as a PDF:

Woman article with Dr. Tanja Pisec-Weihen: “Inner Glow – What Supplements Really Do for Skin & Hair”

 

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