FREE NEXT-DAY DELIVERY ON UK ORDERS £25+
Bean Sun Serum (50ml)
Bean Sun Serum (50ml)
Bean Sun Serum (50ml)
Bean Sun Serum (50ml)

Mixsoon

Bean Sun Serum (50ml)

  • £17.99
Mixsoon Bean Sun Serum is an SPF50+ PA++++ daily sunscreen with a watery, serum-like texture. It also contains 5% niacinamide, as our box states, plus sodium hyaluronate and adenosine. The fermented soybean behind the name is a trace ingredient: our box lists it at 0.025 ppm (0.0000025%). It goes on clear with a dewy finish. What it doesSPF50+ protects against UVB, the rays that burn, and PA++++ is the highest rating for UVA, the rays linked to dark spots and skin ageing. Five chemical filters, including Tinosorb S and two Mexoryl filters, share the work, and as none of them is a mineral filter, it is designed to go on clear rather than white. In Korea our box registers it as a functional cosmetic for UV protection, wrinkle care and brightening, and the 5% niacinamide supports the barrier and a more even-looking tone, while sodium hyaluronate keeps skin feeling hydrated. Why we chose itWe chose it as an everyday SPF50+ PA++++ that feels like a light serum, which makes daily sunscreen easier to keep up; the 5% niacinamide is a useful extra, and there is no fragrance in the listed ingredients. It layers well over Mixsoon Bean Essence. Best forNormal, combination or dehydrated skinPeople who dislike thick or chalky sunscreensWearing under makeupAnyone using acids or retinoidsNot ideal ifYou avoid coconut-derived ingredients: it contains coconut oilYou prefer mineral filters: choose Haruharu Wonder Black Rice Mineral Relief Daily SunscreenYou are swimming or doing sport: it is not described as water-resistant, so reapply afterwardsKey ingredientsNiacinamide (5%, as our box states): barrier support and a more even-looking toneFermented soybean (0.025 ppm on our box), pomegranate, barley and pear: minor skin-conditioning extrasSodium hyaluronate: hydrationAdenosine: smoother-looking skinFive chemical UV filters: broad UVA and UVB protection, designed to go on clearTexture and finishWatery and light, like a serum. It spreads easily and leaves a fresh, dewy finish rather than a matte one. Where it goes in your routineMornings only, as the last skincare step: after moisturiser, before makeup. Spread it evenly over your face and other exposed areas before you go out, and reapply often while you are outdoors, especially after sweating, swimming or towel drying, as the box directs. Good to knowButyloctyl salicylate, near the top of the list, is an emollient that helps the filters spread; it is not an exfoliating acid. Do I need sunscreen every day in the UK? explains when UK sun matters. Quick facts: 50 ml · SPF50+ PA++++ · Chemical filters · 5% niacinamide · No fragrance listed · AM only · Mixsoon, Korean brand
Read more
  • SPF50+ PA++++ serum sunscreen with niacinamide
  • Watery texture, goes on clear, dewy finish
  • No fragrance listed; contains coconut oil
  • Last AM step; reapply often outdoors
Helps with
Sun protectionUneven toneDehydrationMakeup prep
Best for
All skin types

In stock. Order by 1pm Monday to Friday for same-day dispatch

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What customers say

5.0 ★ · 1 review

  • Underrated SPF! The best spf if you wear makeup every day and actully feels like serum. would defo reccomend

    Bianca

Mixsoon Bean Sun Serum is an SPF50+ PA++++ daily sunscreen with a watery, serum-like texture. It also contains 5% niacinamide, as our box states, plus sodium hyaluronate and adenosine. The fermented soybean behind the name is a trace ingredient: our box lists it at 0.025 ppm (0.0000025%). It goes on clear with a dewy finish.

What it does

SPF50+ protects against UVB, the rays that burn, and PA++++ is the highest rating for UVA, the rays linked to dark spots and skin ageing. Five chemical filters, including Tinosorb S and two Mexoryl filters, share the work, and as none of them is a mineral filter, it is designed to go on clear rather than white. In Korea our box registers it as a functional cosmetic for UV protection, wrinkle care and brightening, and the 5% niacinamide supports the barrier and a more even-looking tone, while sodium hyaluronate keeps skin feeling hydrated.

Why we chose it

We chose it as an everyday SPF50+ PA++++ that feels like a light serum, which makes daily sunscreen easier to keep up; the 5% niacinamide is a useful extra, and there is no fragrance in the listed ingredients. It layers well over Mixsoon Bean Essence.

Best for

  • Normal, combination or dehydrated skin
  • People who dislike thick or chalky sunscreens
  • Wearing under makeup
  • Anyone using acids or retinoids

Not ideal if

Key ingredients

  • Niacinamide (5%, as our box states): barrier support and a more even-looking tone
  • Fermented soybean (0.025 ppm on our box), pomegranate, barley and pear: minor skin-conditioning extras
  • Sodium hyaluronate: hydration
  • Adenosine: smoother-looking skin
  • Five chemical UV filters: broad UVA and UVB protection, designed to go on clear

Texture and finish

Watery and light, like a serum. It spreads easily and leaves a fresh, dewy finish rather than a matte one.

Where it goes in your routine

Mornings only, as the last skincare step: after moisturiser, before makeup. Spread it evenly over your face and other exposed areas before you go out, and reapply often while you are outdoors, especially after sweating, swimming or towel drying, as the box directs.

Good to know

Butyloctyl salicylate, near the top of the list, is an emollient that helps the filters spread; it is not an exfoliating acid. Do I need sunscreen every day in the UK? explains when UK sun matters.

Quick facts: 50 ml · SPF50+ PA++++ · Chemical filters · 5% niacinamide · No fragrance listed · AM only · Mixsoon, Korean brand

  • Use every morning as the last skincare step: after moisturiser, before makeup.
  • Spread an even layer over your face and any other exposed skin before you go out. The box warns that using less sunscreen lowers the protection significantly, so don't skimp.
  • Reapply often while you are outdoors, especially after sweating, swimming or towel drying, as the box directs. Our box does not describe it as water-resistant.
  • If you use acids or retinoids, or are working on uneven tone, make daily sunscreen a fixed habit.
  • Remove in the evening with a cleansing oil or balm, then your usual cleanser.

Water, Niacinamide, Butyloctyl Salicylate, Propanediol, Ethylhexyl Triazone, Caprylyl Methicone, Glycerin, Drometrizole Trisiloxane, Polyglyceryl-3 Distearate, Dibutyl Adipate, Diisopropyl Sebacate, Terephthalylidene Dicamphor Sulfonic Acid, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Tromethamine, 1,2-Hexanediol, Pentylene Glycol, Oak Root Extract, Lactobacillus/Punica Granatum Fruit Ferment Extract, Lactobacillus/Soybean Ferment Extract, Cocos Nucifera (Coconut) Oil, Sodium Hyaluronate, Methyl Methacrylate Crosspolymer, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Cetearyl Alcohol, Glyceryl Stearate, Silica, Potassium Cetyl Phosphate, Sodium Polyacryloyldimethyl Taurate, VP/Eicosene Copolymer, Carbomer, Glyceryl Stearate Citrate, Ammonium Acryloyldimethyltaurate/VP Copolymer, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Ethylhexylglycerin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Inulin Lauryl Carbamate, Adenosine, Xanthan Gum, Tocopherol, Lactobacillus/Pear Juice Ferment Filtrate, Saccharomyces/Barley Seed Ferment Filtrate, Quercus Suber Bark Extract

Good to know

  • No fragrance in the listed ingredients
  • Contains coconut oil (coconut-derived)
  • Chemical filters, including Tinosorb S and Mexoryl SX and XL
  • Butyloctyl salicylate is an emollient, not an exfoliating acid
  • Contains 5% niacinamide, as the box states
  • Registered in Korea as a functional cosmetic for UV protection, wrinkle care and brightening, as the box states
  • Fermented soybean extract is listed at 0.025 ppm
  • The box states: skin irritation test completed
  • Box caution: for external use only. Do not stay too long in the sun, even while using a sunscreen product. Keep babies and young children out of direct sunlight. Over-exposure to the sun is a serious health threat. Recommended for facial use.
  • Box caution (Korean, translated): if red spots, swelling or itching appear during or after use, including after direct sunlight on the area, stop and seek advice from a specialist. Do not use on broken skin. Keep out of reach of children and away from direct sunlight.

Does it leave a white cast?

It is designed to go on clear: all five filters are chemical filters, with no zinc oxide or titanium dioxide. We have not gathered enough reliable feedback across deeper skin tones to promise that it looks invisible on everyone.

Is it suitable for sensitive skin?

Often, but it depends on your skin. There is no fragrance in the listed ingredients and the box says a skin irritation test was completed. It uses chemical filters, which some people with reactive skin find uncomfortable, especially near the eyes. If that is you, Haruharu Wonder Black Rice Mineral Relief Daily Sunscreen is our mineral option. Patch test first.

Will it work for oily skin?

It can. It is watery and light, but it dries down dewy rather than matte, so if your skin gets shiny by midday you may prefer to follow it with a mattifying primer or powder.

Is the "bean" the reason to buy it?

No. The fermented soybean is listed on our box at 0.025 ppm (0.0000025%). You are buying it for SPF50+ PA++++ protection in a serum texture, with 5% niacinamide as the main skincare extra.

It contains a salicylate. Is that an exfoliating acid?

No. Butyloctyl salicylate is an emollient that helps the filters spread. It is not salicylic acid and does not exfoliate.

UK Delivery

Orders under £25
Shipping: £2.99
Service: Royal Mail Tracked 48

Orders £25 and over
Shipping: FREE
Service: Royal Mail Tracked 24

Dispatch & Delivery Times

  • Orders placed before 1pm Monday to Friday are dispatched the same working day.
  • Orders placed after 1:00 PM are dispatched the next working day.
  • Royal Mail Tracked 48 typically delivers within 2 working days.
  • Royal Mail Tracked 24 aims for next working day delivery.

So for orders £25 and over placed before 1pm on a working day:

Order before 1pm → dispatched same day → Royal Mail Tracked 24 aims to deliver the next working day.

Please note that delivery times are estimates and may occasionally vary during busy periods, bank holidays or due to Royal Mail delays.

Bean Sun Serum (50ml)

£17.99