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The eye edit: from brow fortification to under-eye brightening.
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  • Skin Diagnostic
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UV Light

UV light, emitted by the sun and certain artificial devices, plays a key role in the synthesis of vitamin D. However, excessive exposure can lead to skin damage, accelerate skin ageing, and increase the risk of cancer. Using suitable sun protection is essential to prevent the harmful effects of UV rays. Learn more about this.
Effet acide glycolique soleil.
Exfoliating actives
6 min of reading
Should glycolic acid be avoided during exposure to sunlight?

Glycolic acid, an alpha hydroxy acid (AHA), is widely recognised for its exfoliating properties, making it a popular choice in skin care. But when it comes to sun exposure, should you exercise caution? This article examines the relationship between glycolic acid and photosensitivity, supported by scientific research.

Exposition solaire et vitiligo.
Skin concerns
6 min of reading
Is sun exposure harmful to vitiligo?

Vitiligo is characterised by the progressive depigmentation of certain areas of skin due to the loss of melanin. However, this pigment does not merely serve an aesthetic purpose: it also protects the skin from ultraviolet radiation. Consequently, one might ask whether sun exposure poses an increased risk for individuals with vitiligo. We review the current evidence in this article.

Le soleil fait disparaitre l'acné : idée reçue.
Common misconceptions
6 min of reading
Common misconception: the sun makes acne disappear

Acne is a common inflammatory skin condition that typically emerges during adolescence but can persist or manifest in adulthood. Faced with this skin problem, many beliefs circulate, notably that exposure to sunlight helps clear spots. This entrenched misconception persists, yet scientific evidence tells a very different story. Discover what research really has to say on the subject.

Bakuchiol, an active ingredient to avoid in sunlight?
Antimicrobial agents
5 min of reading
Bakuchiol, an active ingredient to avoid in sunlight?

Bakuchiol is an active ingredient in skincare. It targets fine lines, blemishes, and pigmented spots. It offers multiple benefits and bears frequent comparison with retinol. However, this similarity raises concerns: like retinol, can bakuchiol increase skin sensitivity to sun exposure? Discover the answer.

Exposition au soleil après une opération chirurgicale.
Biology
6 min of reading
Are there risks from sun exposure after surgery?

While sunlight is essential to synthesise vitamin D, it can damage the skin after surgery. What risks arise from sun exposure following an operation? Read on to learn why sun exposure after surgery is not recommended.

FAQ about uv light

What are the different types of UV rays?

There are three types of UV rays: UVA, which are responsible for skin ageing, UVB, which cause sunburn, and UVC, which are blocked by the Earth's atmosphere.

How to protect oneself from UV rays?

To protect oneself from UV rays, it is advised to wear broad-spectrum sunscreen, protective clothing, a hat, and sunglasses, and to avoid the sunniest hours of the day.

Do clouds block UV light?

No, up to 80% of UV rays can penetrate through clouds, which is why it's crucial to protect oneself even on cloudy days.

Are children more vulnerable to UV rays?

Indeed, children's skin is more sensitive to UV rays which makes them more susceptible to sunburn and long-term damage.

Do windows block UV rays?

House or car windows block the majority of UVB rays, but allow a significant amount of UVA rays to pass through, hence the importance of wearing sun protection, even indoors.

Does UV light exclusively cause skin cancer?

UV rays are primarily responsible for skin cancers, but they can also damage the eyes and increase the risk of cataracts.

Does tanning protect against UV rays?

Tanning is primarily a skin defence reaction against the damage caused by UV rays. It does not protect against the long-term effects of ultraviolet radiation.

Is the sun beneficial for acne?

While the sun may temporarily improve acne, prolonged exposure often exacerbates inflammation and promotes the appearance of scars.

What are the risks of prolonged exposure to the sun?

Extended and/or repeated exposure to the sun can lead to sunburn, premature skin ageing, pigmentation spots, and an increased risk of skin cancers.

Can sun exposure trigger allergies?

Yes, some individuals develop reactions such as summer light eruption or phototoxic rashes following sun exposure.

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