Skin1004 Madagascar Centella Hyalu-Cica Water-Fit Sun Serum

It uses modern organic UV filters: diethylamino hydroxybenzoyl hexyl benzoate, ethylhexyl triazone, methylene bis-benzotriazolyl tetramethylbutylphenol and diethylhexyl butamido triazone. Together they give high UVA and UVB protection (SPF50+ PA++++) with a sheer, serum-like finish and no white cast on any skin tone, unlike most mineral sunscreens.

Yes, it's one of the better choices for sensitive skin. It's unscented, has completed a skin irritation test and avoids some of the older UV filters that more often sting. As with any new product, patch-test on your jawline for a couple of days if your skin is very reactive, and keep it away from the eyes.

About a quarter of a teaspoon, or two finger lengths, for the face, to get the protection shown on the box. Most people use much less, which lowers the real SPF. Apply it as the last step of your morning skincare, including the neck and ears. The box notes it can also be used on arms and legs.

Reapply every two hours when you're outdoors, and straight after swimming, sweating or towel drying, as the box makes no water-resistance claim. On a normal indoor day, one generous morning layer covers most needs, but reapply before going out at lunchtime. Wear it daily, including on cloudy days and in winter.

Yes. Its light serum texture absorbs quickly without a greasy film, so foundation and cushion sit smoothly on top. It leaves a dewy finish, so if your skin is very oily, set your T-zone with a little powder. Give it two to three minutes to settle before makeup, and pat rather than rub your base on.

Both offer SPF50+ PA++++ with niacinamide and adenosine. Choose Skin1004 if you have sensitive skin, use strong actives like retinol, vitamin C or azelaic acid, or prefer an unscented, dewy serum. Choose Farmstay if you like a light cream texture with a fresh scent and a non-sticky finish.

Only small amounts: the box lists centella at 100 ppm and three forms of hyaluronic acid at 10 ppm or less, so "Hyalu-Cica" refers to the formula concept rather than high concentrations. The hydrating feel comes mainly from glycerin and the serum base. Its key strengths are high UV protection and its Korean certification for brightening and wrinkle care.

Yes. It's an easy daily sunscreen for men: unscented, quick to absorb and with no white cast, even on a beard line. Apply it after cleansing and shaving, or after moisturiser, every morning. Daily sunscreen is the single most effective step for preventing sunspots, uneven tone and early wrinkles.