Summer imposes important challenges to skin physiology. Increased exposure to ultraviolet radiation, increased perspiration, water loss, and heightened oxidative stress require a more strategic clinical approach to maintaining skin integrity.

In addition to the topical use of photoprotectors, interest in evidence-based systemic interventions is growing, especially in the context of clinical nutrition and targeted supplementation.

In this article, we discuss physiological mechanisms and nutritional strategies applicable to clinical practice to support skin health during the summer.

UV radiation and skin oxidative stress

Sun exposure triggers the formation of reactive oxygen species (EROs), which promote:

• Damage to cellular DNA;

• Collagen degradation by activation of metalloproteinases (MMPs);

• Alteration of skin barrier function;

• Acceleration of photoaging.

This scenario reinforces the importance of systemic antioxidant strategies associated with topical photoprotection.

The literature has already demonstrated that antioxidant nutrients, such as vitamin C, vitamin E, zinc, and bioactive compounds, can act as adjuvants in the reduction of UV-induced oxidative damage, contributing to a better clinical response.

Skin hydration: in addition to water intake

During summer, increased transepidermal water loss (TEWL) can compromise elasticity, strength, and barrier function.

Skin hydration depends on multiple factors, including:

• Integrity of the extracellular matrix;

• Availability of structural amino acids;

• Adequate collagen synthesis;

• Inflammatory balance.

Hydrolyzed collagen peptides have been studied for their ability to stimulate fibroblasts and improve parameters such as elasticity and dermal density.

In clinical protocols, it may be interesting to evaluate strategies with collagen associated with antioxidant cofactors and nutrients that promote protein synthesis. Formulations such as Colagentek And the Colagentek Beauty, for example, they combine bioactive peptides with strategic micronutrients, facilitating practical application in the office.

Oral photoprotection: evidence and applicability

So-called systemic photoprotection does not replace topical sunscreen, but can act as complementary support.

Studies suggest that certain antioxidants and bioactive compounds may:

• Modulate UV-induced inflammatory response;

• Reduce oxidative stress markers;

• Contribute to lower cumulative cell damage.

For patients with greater sun exposure, a history of melasma, premature photoaging, or outdoor sports, this approach can be considered as part of an integrated plan.

Protein, Collagen Synthesis, and Structural Support

Proper collagen synthesis depends on sufficient protein supply and specific amino acids, such as glycine, proline, and lysine.

In patients with poor protein intake - a common situation even in aesthetically active individuals - the assessment of daily consumption can be decisive.

In this context, proteins of high biological value can contribute to:

• Dermal matrix support;

• Tissue recovery;

• Maintaining skin firmness.

Protein versions with an aesthetic focus, such as Isofort Beauty, can be strategically inserted when the objective includes structural support and skin health.

Clinical strategy in summer: an integrated approach

An applicable proposal for the period includes:

1. Adequate topical photoprotection;

2. Optimization of the antioxidant status;

3. Evaluation of protein intake;

4. Strategies to stimulate collagen synthesis;

5. Hydration monitoring and barrier function.

The integration between dermatology, nutrition, and evidence-based supplementation expands preventive potential and improves clinical outcomes related to photoaging and skin quality.

Final Thoughts

Summer skin care goes beyond the isolated recommendation of sunscreen. The systemic approach, supported by nutritional strategies and targeted supplementation, allows professionals to act in a preventive, integrative and personalized way.

‍