15 Frequently Asked Questions about Sunscreen. (and Sensitive Skin)

SPF stands for Sun Protection Factor. It tells you how well a sunscreen protects you from UVB rays — the ones that cause sunburn and contribute to skin cancer. SPF50, for example, blocks about 98% of UVB rays — but only if you apply enough (2.5g) and reapply regularly.

SPF30 blocks about 96.7% of UVB rays, while SPF50 blocks 98%. That may not seem like much, but over time, that small difference can add up to significantly more damage. Also, higher SPFs are more forgiving if you don’t apply a full 2.5g or miss a spot.

Technically? You could. But that means using 2.5g per application, which would finish a 50g jar in just 20 uses — and you'd still need to reapply every 2 hours. Not economical, not practical, and definitely not what your moisturiser was designed for.

Nope. You’d need to apply a tablespoon of BB or CC cream to get full SPF coverage — and no one’s doing that. Plus, they’re makeup, not skincare, so they don’t hydrate properly or protect evenly.

Because it’s a formulation compromise. Moisturisers are designed to absorb. Sunscreens are designed to stay on top. If we tried to do both in one product, neither would work properly. We’d rather do one job perfectly than two jobs poorly.

1. Cleanse

2. Apply a good moisturiser (and let it absorb)

3. Apply your sunscreen (at least 2.5g for face + neck)

That’s the golden routine for happy, healthy, protected skin. 

Yes! UV rays can penetrate windows, especially UVA rays, which are responsible for premature ageing. If you spend time near windows, drive during the day, or step out for coffee or errands, you're still exposed. Daily SPF is a must—even if you're working from home.

Use a half teaspoon (2.5g) for your face and neck. That’s roughly the size of a five-cent coin per area. If you're unsure, try measuring it once so you can visualise the correct amount. And always reapply every 2 hours if you're outdoors.

Not at all—as long as you let your moisturiser fully absorb first. That way, your sunscreen can form an even, uninterrupted film over the top. Just wait a minute or two after moisturising before applying your SPF.

Technically yes—but many body sunscreens are heavier, oilier, or fragranced, which may not suit sensitive facial skin. Look for a broad-spectrum facial sunscreen that's labelled for sensitive skin or daily wear.

Was just checking to see if you are still reading. Actually, I love both.  In my ideal world, I would have a small dog who I could carry around EVERYWHERE in my handbag and a kitty or two for snuggles at home. 

In real life, I have two rescue Russian Blue kitties at home and I adore them. xx

• Chemical sunscreens absorb UV rays and convert them to heat.

• Physical (mineral) sunscreens sit on top of the skin and reflect UV rays.

Both can be effective. For sensitive skin, zinc oxide (a physical blocker) is often best tolerated.

Yes. While melanin offers some natural protection, it’s not enough to prevent UV damage. Darker skin tones can still experience sun-induced ageing, hyperpigmentation, and skin cancer. Everyone, regardless of skin tone, needs daily SPF.

Unfortunately, no. Just like BB and CC creams, foundation with SPF isn't applied thickly enough to provide adequate protection. Makeup is designed for coverage, not SPF performance. Always use a proper sunscreen underneath your foundation.

Some do—but modern zinc oxide formulas are getting much better. If you have sensitive skin, mineral sunscreens with zinc oxide are often gentler and less irritating. Look for ones specifically designed for daily wear or sensitive skin.

Broad-spectrum means the sunscreen protects against both UVA and UVB rays. UVB causes sunburn, while UVA causes deeper skin damage and ageing. You need protection from both every day, all year round.