Isntree Hyaluronic Acid Fresh Sun Serum: how to choose and use it

What should you check before buying?

Look for SPF 30 or higher and protection against both UVA and UVB, the two types of ultraviolet radiation that reach your skin. SPF mainly describes UVB protection against sunburn; a high SPF number alone does not tell you the UVA protection. For swimming or sweaty outdoor activity, also look for a water resistance claim.234

Use the ingredient list on your exact pack to identify its sunscreen filters and other ingredients. The name alone cannot tell you whether Fresh Sun Serum is mineral, chemical or a combination, or whether its formula suits your ingredient preferences. Sunscreen labels and regulations differ between countries, so use the pack sold in your market rather than assuming another version is identical.25

How much does it cost?

Isntree's global shop lists Fresh Sun Serum below Watery Sun Gel in price, with both sold in 50ml sizes. Fresh Sun Serum and Watery Sun Gel are separate products, despite names that sound like adjacent departments in a water company.16

How do you apply Fresh Sun Serum?

Use the directions on your pack for product specific instructions. The following is general sunscreen guidance, not a special application method for Fresh Sun Serum.5

1. 1Apply sunscreen to dry skin 15 minutes before going outdoors.
2. 2Cover exposed skin evenly and generously. General face guidance is at least 1 teaspoon; do not spread a small amount thinly to make it cover more skin.
3. 3Include your neck, ears and hairline, plus any exposed scalp. Protect your lips with an SPF 30 or higher lip balm.
4. 4Reapply approximately every two hours outdoors, and after swimming or sweating, following the bottle's directions.

Face coverage is not whole body coverage. Most adults need about 1 ounce of sunscreen to cover skin not protected by clothing, with more needed for a larger body. Applying sunscreen too thinly reduces its protection.23

When do you need it?

Apply sunscreen on exposed skin each day you will be outside. Clouds do not remove the need for protection, and UVA can pass through window glass. The UV index is another useful check: daily sunscreen is advised when the forecast reaches 3 or higher.24

What results should you expect?

Sunscreen's job is to protect against ultraviolet exposure, rather than to deliver a visible treatment result after a set number of weeks. Sun protection helps reduce sunburn, premature skin ageing and skin cancer risk. Do not choose Fresh Sun Serum solely for an expected hydration boost, invisible finish or compatibility with makeup; judge those qualities separately from its protection ratings.45

Is it suitable for sensitive skin?

A serum name is not enough to judge suitability for sensitive skin. Dermatologists recommend mineral sunscreens containing zinc oxide, titanium dioxide or both for sensitive skin. Check Fresh Sun Serum's actual filters before deciding whether it fits that preference.2

Can you use it for swimming?

Choose a sunscreen explicitly labelled water resistant for swimming or activities that make you sweat. Do not assume Fresh Sun Serum has water resistance from its name or texture. Even water resistant sunscreen needs reapplication after leaving the water, towel drying, sweating or rubbing off.3

What should you pair it with?

Pair sunscreen with shade, clothing that covers exposed skin, a hat that shades your face and neck, and sunglasses with UV protection. Sunscreen cannot block all ultraviolet radiation, so the bottle does not get the entire job description. Take particular care around water and snow, where reflected ultraviolet radiation adds to exposure.27

How should you store it?

Keep the container away from excessive heat and direct sunlight; outdoors, keep it in the shade or wrap it in a towel. Follow its expiry date and any opening period printed on the pack. Discard expired sunscreen rather than relying on it for protection.35

When should you seek medical help?

If you develop sunburn, stay out of the sun until the redness has gone. Seek medical help if you feel unwell or your skin swells badly or blisters.3