What is SPF and
how often should it be applied?
How SPF
Protects Your Skin
Sun protection is essential for heping to maintain healthy-looking skin and preventing long-term damage. Prolonged exposure to the sun can cause sunburn, premature ageing, and increase the risk of skin damage. Sunscreen plays a crucial role in shielding the skin from harmful UV radiation, and SPF is a key factor in choosing the right protection.
What does
SPF stand for?
The SPF on sunscreen stands for sun protection factor, a relative measurement for the amount of time the sunscreen will protect the skin from ultraviolet (UV) rays. The higher the SPF number, the higher the percentage of UVB rays it will block.
In practice, however, it's a different story, as the duration of a sun cream's effectiveness can depend on a number of factors, such as the quantity applied, the UV index, and whether the skin is sweating or swimming. The SPF value should therefore be seen more as a guide, and reapplied regularly.
The difference between
SPF levels
- SPF15 blocks approximately 93% UVB rays
- SPF 30 blocks about 97% of UVB rays
- SPF 50 blocks approximately 98% of UVB rays
SPF is determined by measuring the time it takes for redness (erythema) to appear on unprotected skin exposed to a specific dose of UV rays, compared with unprotected skin. So, in theory, an SPF 30 sun cream would last 30 times longer than the same exposure without protection. In practice, however, it's a different story, as the duration of a sun cream's effectiveness can depend on a number of factors, such as the quantity applied, the UV index, and whether the skin is sweating or swimming. The SPF value should therefore be seen more as a guide, and reapplied regularly.
How to apply
SPF correctly
Sunscreen should be applied generously to all uncovered areas. The amount of SPF needed varies by age:
- Under 3 years: Avoid exposing babies and young children to the sun at all costs by keeping them in the shade and using protective clothing, a hat, sunglasses and a parasol, as their skin is extremely delicate and more vulnerable to UV damage. For uncovered areas subject to indirect exposure, use a minimum of 5 to 10 ml for babies aged 6 months and over.
- Children (3-5 years): At least 10-15ml. For more information on choosing the right sun protection for children, check NIVEA's sunscreen guide for children.
- Children (5-10 years): Require at least 15-20ml for full coverage.
- Adults and children over 10: Need at least 30-40ml for the whole body.
When applying SPF to face, make sure to use a sunscreen formulated for the face and sensitive skin.
How long does SPF50 last and
How often should you reapply sunscreen?
Regardless of the SPF level used, to maintain optimal protection, sunscreen should be reapplied every two hours. If you are swimming, sweating, or towel-drying, it will wear off more quickly, requiring more frequent reapplication. Always check the sunscreen's water-resistant label for specific guidance on reapplication during water activities. Regular reapplication ensures continuous protection throughout the day.
What is SPF and
how often should it be applied
Application:
Sunscreen should be reapplied every two hours or more frequently if swimming or sweating.Â
What is SPF:
SPF stands for Sun Protection Factor, indicating the level of protection sunscreen provides against UVB rays.Â
SPF levels:Â
SPF15 blocks approximately 93% UVB rays
SPF 30 blocks approximately 97% of UVB rays.Â
SPF 50 blocks approximately 98% of UVB rays. Â
Protection with SPFÂ
for the Face
Applying SPF:
Tips for Face and Body
Your face is highly exposed to UV rays, making daily SPF application essential to prevent sun damage and premature ageing. SPF 50 provides higher protection, though lower SPFs work during less intense exposure if applied and reapplied correctly.
Apply sunscreen as the last step of your skincare routine and before you apply any makeup, covering your face, neck, and upper torso. Using moisturisers with SPF offer a convenient way to add SPF into your routine..
Although many makeup products now contain SPF, they are generally not applied in sufficient quantities to offer adequate protection. It's therefore important to ensure you're still using a sufficient amount of sunscreen for optimal protection.
For added convenience, the NIVEA 2in1 Prime UV Serum offers instant SPF 50+ protection and smoothness in a lightweight, fragrance-free formula. Infused with Hyaluron for hydration of the upper layers of the skin and Licochalcone A to boost skin's natural defence mechanisms (in vitro tested), this serum helps combat premature ageing caused by the sun while keeping skin healthy-looking.. Absorbing quickly without greasiness, it provides seamless daily sun protection.
Designed for convenience, its premium dispenser ensures effortless application. The 2-in-1 action protects and smooths, making it perfect for busy lifestyles. It works well alone or as a primer under makeup, delivering long-lasting hydration and defence for a healthy-looking, and soft.
Protection with SPF
for the Body
Choosing the
right SPF for your skin
- Fairer skin tones:For fair skin tones, an SPF 50+ is recommended, as fair skin has lower melanin levels and is more prone to burning and skin damage.
- Darker skin tones:For darker skin tones, an SPF 30+ is usually sufficient, as melanin offers some natural UV defence. However, this does not eliminate the risk of sunburn, hyperpigmentation, or skin damage, so daily SPF application remains essential. In some cases, an SPF 50 may be recommended, particularly to protect the face in the event of high exposure or hyperpigmentation.
- Oily skin:For oily skin, it is recommended to use a lightweight, mattifying sunscreen that will not clog pores or feel greasy. Sun protection products in fluid or gel form generally give a less oily effect than creams. Look for products with an ultra-light texture and ingredients such as Niacinamide to absorb the serum and help prevent imperfections.
- Sensitive skin:For sensitive skin, choose sun creams specially formulated for this skin type and which have been dermatologically tested. Fragrance-free, ethyl alcohol-free, and for sensitive skin options help minimise the risk of redness appearance and discomfort.
- Dry skin:Dry skin benefits from hydrating sunscreens enriched with ingredients like Hyaluronic Acid, Glycerine, or Ceramides to lock in moisture while providing UV protection. Many SPF-infused moisturisers offer both sun protection and hydration, preventing dryness and flaking caused by prolonged sun.
NIVEA Sun UV Specialist
Silky UV Stick Sun Cream
What's the difference?
Protection levels above SPF 50 only offer marginally additional coverage, and no level of SPF protection can provide 100% protection. In most situations, SPF 30 is adequate protection if applied correctly and regularly; however, SPF 50 remains the safer option for fair skin or heavy exposure. For those seeking trusted sun protection, try our Protect & Moisture Lotion SPF 50+ 250ml, which protects immediately against sunburn and provides 48h moisture. The Ocean Respect formula is free of UV filters Octinoxate, Oxybenzone and Octocrylene and free of microplastic, offering reliable protection and caring moisture while respecting the ocean.
With a water-resistant formula, this sunscreen is ideal for outdoor activities (don't forget to reapply regularly, especially after swimming or sweating). It keeps the skin feeling soft, smooth, and nourished while maintaining effective sun protection. Suitable for all skin types, its dermatologically tested formula ensures reliable care for daily use.
*Instrumental evaluation, 35 women, 2022
