HOW TO PROTECT YOUR SKIN FROM THE SUN ?

Dernière mise à jour : 12 July 2026

The dangers of the sun

The sun poses a threat to the health of our skin. Exposure to UV rays is one of the main causes of premature skin ageing and dehydration, and sometimes even more serious conditions such as skin cancer.
Ultraviolet (UV) radiation gradually damages collagen, elastin and hyaluronic acid, promoting pigmentation, wrinkles, loss of firmness and an uneven complexion. This process, known as photoageing, can continue for several years after sun exposure and adds to the skin's natural ageing.
This is why protecting the skin before and after sun exposure is crucial for preserving its radiance, firmness and health.
This article explains how to prepare and protect the skin before sun exposure using medical treatments, and how to repair sun damage with suitable care after summer. We discuss specific treatments such as Skinboosters, mesotherapy and PRX-T33 peels, alongside after-sun treatments such as Sculptra, Hydrafacial and laser peels.

Session duration
Regular care and protection; procedures according to assessment
Number of sessions
No universal course; daily prevention
Time to results
Gradual; existing lesions require assessment
Usual after-effects
Depend on the care or procedures selected
Duration of effects
Prevention must continue; no permanent protective effect
Price
Personalised quotation at consultation
Contents
  1. Preparing the skin before sun exposure : essential principles
  2. Protecting your skin before sun exposure : benefits of aesthetic medicine treatments
  3. Skinbooster : hydration and skin strengthening
  4. Mesotherapy : nourishing and protecting the skin
  5. PRX-T33 peel : a nonirritating peel before summer
  6. Caring for your skin after sun exposure
  7. Sculptra : volume restoration and firming
  8. Hydrafacial : deep cleansing and intense hydration
  9. Laser peel : treating photoageing with laser
  10. After the sun : restoring, repairing and hydrating the skin
  11. Prices for aesthetic treatments before and after sun exposure
  12. Sensible sun exposure : medical recommendations
  13. Frequently asked questions about protecting the skin from the sun

Preparing the skin before sun exposure : essential principles

Prevention remains the cornerstone of skin protection against the harmful effects of UV radiation. Before any exposure, it is essential to optimise the skin barrier, strengthen antioxidant defences and ensure optimal hydration. Well-prepared skin is more resilient to light-related stress, limits dehydration and reduces the risk of hyperpigmentation.
In general, appropriate preparation involves three complementary approaches. First, daily sun protection suited to skin phototype and lifestyle. Second, dermocosmetic skincare supporting skin repair, particularly ingredients such as stabilised vitamin C, hyaluronic acid and biomimetic peptides. Finally, nutritional support can complement the routine through regular dietary antioxidants, among the best validated strategies for combating UV-induced oxidative stress.

Protecting your skin before sun exposure : benefits of treatments in
aesthetic medicine

The key to beautiful skin in summer is preparation before exposure. Alongside regular sun protection, certain aesthetic medicine techniques can boost hydration, strengthen the skin and help it better withstand UV damage.

Skinbooster : hydration and
skin strengthening

Skinboosters are an ideal treatment for preparing the skin before a sunny holiday. This treatment involves injecting fluid hyaluronic acid into the superficial skin layers. Unlike conventional fillers that add volume, Skinboosters primarily hydrate the skin deeply and stimulate collagen production.
The benefits of Skinboosters before sun exposure are :

  • Deep hydration : the sun dehydrates the skin ; Skinboosters help prevent UV-induced dryness by providing intense hydration.
  • A natural glow : the skin is radiant, plumped and brighter, ideal for a glowing complexion throughout summer.
  • Improved skin quality : the injections strengthen the skin barrier, making it more resistant to external stressors such as sun and sea salt.

Mesotherapy : nourishing and protecting
the skin

Mesotherapy is another procedure used to prepare the skin for summer. It involves multiple injections of vitamins, minerals, amino acids and antioxidants directly into the dermis.
Why choose mesotherapy before sun exposure ? Several benefits support this choice.

  • Hydration and cell protection : antioxidants in the mesotherapy cocktail help neutralise UV-generated free radicals, thereby delaying skin ageing.
  • Prevention of premature ageing : the injected nutrients stimulate cell renewal and strengthen the skin, increasing its resistance to the sun's harmful effects.
  • Revitalised skin : mesotherapy provides an immediate radiance boost, ideal for fresh, toned skin from the first days of summer.

PRX-T33 peel : a nonirritating peel before summer

Vaginal laser

Conventional peels are often discouraged during sunny periods, but the PRX-T33 peel is an exception. This treatment, containing trichloroacetic acid (TCA) and kojic acid, stimulates skin regeneration without visible peeling or photosensitivity.
The benefits of PRX-T33 before summer are :

  • Gentle regeneration : this peel stimulates cell renewal while respecting the skin barrier, without causing sun sensitivity.
  • Firmness and radiance : by stimulating collagen and elastin production, the PRX-T33 peel tones and firms the skin, giving it a younger, brighter appearance.
  • Skin preparation : by gently renewing the skin, this peel prepares it to withstand external stressors such as sun exposure.

Caring for your skin after sun exposure

Even with the best sun protection, skin damage after summer is common : dehydration, deeper wrinkles, pigmentation and skin laxity. Several aesthetic medicine treatments can help repair these effects and restore radiant skin.

Sculptra : volume restoration
and firming

Sculptra stimulates the skin's natural collagen production. It is an ideal solution after summer to restore firmness and elasticity. Made from poly-L-lactic acid, it works deeply to improve skin quality and tone.
The benefits of Sculptra injections after summer are :

  • Restoring collagen levels : prolonged sun exposure can deplete skin collagen, causing laxity. Sculptra stimulates natural production of this protein, making the skin firmer and more toned.
  • Gradual wrinkle improvement : this treatment provides progressive results, gently filling wrinkles and restoring volume to sagging facial areas.
  • Lasting results : Sculptra's effects develop gradually (over several weeks), but last up to two years, keeping the skin younger-looking after summer.

Hydrafacial : deep
cleansing and intense hydration

Hydrafacial is a noninvasive procedure combining cleansing, exfoliation, extraction and hydration. It is particularly recommended after summer to rehydrate the skin and remove impurities accumulated through sweat, salt and sunscreen.
Why is Hydrafacial a must after sun exposure ? Several benefits support this choice.

  • Deep cleansing : after summer, dead cells and impurities can build up on the skin. The treatment effectively removes this residue, allowing the skin to breathe.
  • Immediate hydration : the intense hydration provided by this treatment is ideal for repairing dry, dehydrated skin after prolonged sun exposure.
  • Instant radiance : the complexion is immediately brighter and the skin smoother and more even, thanks to Hydrafacial's gentle but effective exfoliation.

Laser peel : treating photoageing with laser

Vaginal laser

A laser peel is an ideal solution for correcting deeper sun damage, including pigmentation, superficial wrinkles and skin dryness. Unlike chemical peels, laser precisely targets damaged skin layers while stimulating regeneration.
This treatment should be performed in winter.
The benefits of a laser peel after summer are :

  • Reduced pigmentation : laser peels are highly effective for treating sun spots that often appear after prolonged UV exposure.
  • Improved skin quality : by stimulating collagen production and exfoliating superficial skin layers, laser improves skin quality, leaving it smoother and firmer.
  • Lasting results : laser peel effects become visible after a few days of healing and results last one year. The skin looks younger and more even.

After the sun : restoring, repairing and hydrating the skin

After sun exposure, the priority is to soothe the epidermis, restore barrier function and repair any cellular damage. Repeated sun exposure causes oxidative stress, inflammation and transepidermal water loss. Early intervention is therefore crucial.
In dermocosmetic care, ingredients such as hyaluronic acid, panthenol, ceramides, vitamin E and plant-based soothing agents are appropriate. Daily emollient skincare restores the lipid barrier, while antioxidant serums repair free radical damage.
Oral hydration is important. A diet rich in fruit, vegetables, essential fatty acids and water supports optimal skin recovery.

Prices for aesthetic treatments before and after sun exposure

In Geneva, several aesthetic medical treatments are offered to prepare the skin for sun exposure or optimise its recovery. Prices vary according to the treatment and chosen protocol. Sculptra, used to restore skin density, costs 900 CHF per vial. Mesotherapy, indicated for superficial revitalisation, costs 300 CHF per session.
Two types of peel are offered : laser peels at 600 CHF per session, and PRX-T33 peels at 200 CHF. Skinbooster, designed to deeply hydrate and revitalise the skin with hyaluronic acid, costs 400 CHF per syringe. Finally, Hydrafacial, often chosen during preparation or skin recovery, costs 200 CHF per session. These treatments form part of a preventive or restorative medical approach according to the patient's skin needs.

Sensible sun exposure : medical recommendations

Even with careful preparation, sun exposure must remain controlled to prevent cell damage. Broad-spectrum sunscreen, reapplied every two hours, is essential. Choose photostable formulas suited to sensitive skin and ideally enriched with moisturising agents.
Wearing a hat, using UV-filtering sunglasses and seeking shade when the sun is strongest are simple but essential measures. Avoiding long, repeated exposure is also recommended, particularly at the start of summer, when the skin is not yet accustomed and remains more vulnerable.

WHAT THE STUDIES SAY
01

A randomised trial involving 290 women aged 30 to 65 compared their usual routine with application of SPF 60 sun protection twice a day for one year. Fifteen dermatologists assessed the photographs. In the group receiving this photoprotection, progression of certain signs, particularly forehead wrinkles, marionette lines and brown-spot size, was reduced by 30 to 50% compared with the control group. These results show the value of regular protection to slow photoageing.

Source: Impact on facial skin aging signs of a 1-year standardized photoprotection over a classical skin care routine in skin phototypes II–VI individuals: A prospective randomized trial — F. Flament, D. G. Mercurio, E. Catalan et al. Journal of the European Academy of Dermatology and Venereology, 2023.

02

A prospective study involving 32 people assessed the effects of daily broad-spectrum sunscreen application over one year. Assessments showed improvement in several signs of photoageing, particularly skin texture and evenness of complexion. These results suggest the value of regular sun protection. However, without a control group, they do not allow the observed improvements to be attributed with certainty to the product studied alone.

Source: Daily Use of a Facial Broad Spectrum Sunscreen Over One-Year Significantly Improves Clinical Evaluation of Photoaging — Manpreet Randhawa, Steven Wang, James J Leyden et al. Dermatologic surgery, 2016.

03

A double-blind randomised trial assessed the value of protection against ultraviolet and visible light in melasma treatment. Combined with the depigmenting treatment studied, this protection provided additional benefit compared with protection against ultraviolet light alone. These results highlight the importance of suitable photoprotection in melasma management, alongside personalised treatment.

Source: Near-visible light and UV photoprotection in the treatment of melasma: a double-blind randomized trial — Juan Pablo Castanedo-Cazares, Diana Hernandez-Blanco, Blanca Carlos-Ortega et al. Photodermatology, photoimmunology & photomedicine, 2014.

Frequently asked questions about protecting the skin from the sun

Can you go in the sun before hyaluronic acid injections ?

It is preferable to avoid excessive sun exposure before hyaluronic acid injections to limit the risk of inflammation and skin sensitisation.

Can you have botulinum toxin injections during sunny weather ?

Yes, botulinum toxin injections can be performed during sunny periods, but avoiding the sun immediately afterwards is recommended to minimise irritation and swelling.

Which aesthetic medicine treatments are recommended to prepare the skin before sun exposure ?

A gentle peel to remove dead cells, mesotherapy for deep hydration and antioxidant skincare to strengthen skin protection are ideal before sun exposure.

What precautions are needed after aesthetic injections before sun exposure ?

After injections, avoid direct sun exposure for 48 hours, apply SPF 50 sunscreen and wear hats to protect the skin.

Which aesthetic medicine treatments are ideal for hydrating the skin after summer ?

Mesotherapy, skinboosters and hyaluronic acid treatments are ideal for restoring skin hydration after summer and repairing sun damage.

Which aesthetic medicine treatments are effective for treating sunburn ?

Repairing treatments such as mesotherapy with vitamins and hyaluronic acid, as well as Skinbooster injections, help regenerate the skin after sunburn.

How should an aesthetic skincare routine be adapted to the seasons and sun exposure ?

In summer, prioritise moisturising, antioxidant and UV-protective skincare. In winter, favour repairing and nourishing treatments, such as peels and revitalising procedures.

Does heat melt hyaluronic acid ?

No, heat does not melt hyaluronic acid. However, high temperatures can promote mild temporary swelling. Avoiding saunas and hammams after injections is therefore recommended.