HAKU Day Brightening UV — Medicated Whitening Serum SPF50+

3.9 / 5 Loved by 25+

HAKU Day Brightening UV — Medicated Whitening Serum SPF50+

Name: HAKU Day Brightening UV — Medicated Whitening Serum SPF50+
Brand: HAKU
SKU: JPRIME-BTY-HAKU-DAYBRIGHTENINGUV-45ML
Price: 52.80 USD
Availability: InStock
Rating: 3.9 (25 reviews)

Brand HAKU

$52.80

Shipping calculated at checkout.

Brand Attributes

HAKU

Whitening serum market no. 1 for 21 yearsSpot prevention science focusShiseido group brand

Format: 45ml

45ml

Our medicated daytime serum cares for spot risk while the sun is up. Two whitening actives suppress melanin to prevent spots and freckles, SPF50+ PA++++ blocks UV, and a fresh, glowing finish doubles as your makeup base.

Available in stock

100% authentic
Made in Japan
Crafted in Japan

Vendor:HAKU

Questions? Ask HAKU →

Payments & Security

Secured Shipping
100% refundable

Estimated delivery:Oct 16 - Oct 20

HAKU Day Brightening UV — Medicated Whitening Serum SPF50+

$52.80

Brand	HAKU
Type	Medicated daytime whitening serum UV
Volume	45ml
SPF / PA	SPF50+ PA++++
Key Ingredients	4-Methoxysalicylic acid potassium salt, tranexamic acid, tangerine peel extract, ectoin, glycerin
Certifications	Quasi-drug (medicated)
Made In	Japan
Fragrance	Fragrance-free

Spot-risk care while the sun is up
UV protection alone does not stop melanin activation, so we added care for daytime spot risk. Two whitening actives suppress melanin production to prevent spots and freckles, giving you protection that works from two directions.
Two whitening actives that work together
4MSK focuses on accumulating melanin and suppresses excess pigment, while m-tranexamic acid calms the activation of melanocytes. Together they give you gapless whitening care all day long, from your first step outside.
The highest UV protection value in a serum
SPF50+ PA++++ guards your skin from strong sun on commutes, errands and weekends. You get top-level protection from a fresh serum, so you never need a heavy sunscreen layer on top.
A base that helps foundation go on and last
The glowing, tone-up finish evens out spots and color unevenness, and the smooth skin makes foundation go on better and last longer. You skip a separate base and still walk out looking polished.
Moisture that lasts without stickiness
The serum spreads fresh and settles moist and smooth. Shikuwasa Extract GL and glycerin keep your skin moisturized through the day, so you stay comfortable without a sticky film or tight feeling.
A bright glow you will notice
The tone-up effect makes spots and color unevenness less noticeable and leaves a bright, glossy finish. Dryness fine lines also look less noticeable, so your skin looks fresh from morning to evening.

STORAGE

Store away from direct sunlight and high heat, close the cap firmly after use, and keep out of reach of infants.

SHELF LIFE

We ship with a minimum of 6 months remaining shelf life.

PREPARATION

No preparation required — ready to use as packaged.

IMPORTANT

For external use only. Stop use and ask a healthcare professional if redness, swelling or itching appears, and do not use on wounds or rashes. Rinse right away if it gets into the eyes. Consult your healthcare provider before use if you are pregnant, nursing, or taking medication.

Specifications

Brand: HAKU
Type: Medicated daytime whitening serum UV
Volume: 45ml
SPF / PA: SPF50+ PA++++
Key Ingredients: 4-Methoxysalicylic acid potassium salt, tranexamic acid, tangerine peel extract, ectoin, glycerin
Certifications: Quasi-drug (medicated)
Made In: Japan
Fragrance: Fragrance-free

Features

2 Whitening Active Ingredients: 4MSK and m-tranexamic acid suppress melanin production to prevent spots and freckles.

SPF50+ PA++++ UV Protection: The serum offers the highest UV protection value for strong daytime sun.

Daytime Spot-Risk Care Concept: The formula answers the melanin pathway that UV protection alone cannot stop in daytime.

Works As A Makeup Base: A glowing, smoothing finish helps foundation go on better and last longer.

Fragrance-Free And Allergy-Tested: The formula is fragrance-free, allergy-tested and less likely to cause acne, though no test guarantees a reaction-free result.

45ml Pump Bottle: A 45ml pump bottle gives easy dosing and fits a daily morning routine.

Benefits

Spot-risk care while the sun is up: UV protection alone does not stop melanin activation, so we added care for daytime spot risk. Two whitening actives suppress melanin production to prevent spots and freckles, giving you protection that works from two directions.

Two whitening actives that work together: 4MSK focuses on accumulating melanin and suppresses excess pigment, while m-tranexamic acid calms the activation of melanocytes. Together they give you gapless whitening care all day long, from your first step outside.

The highest UV protection value in a serum: SPF50+ PA++++ guards your skin from strong sun on commutes, errands and weekends. You get top-level protection from a fresh serum, so you never need a heavy sunscreen layer on top.

A base that helps foundation go on and last: The glowing, tone-up finish evens out spots and color unevenness, and the smooth skin makes foundation go on better and last longer. You skip a separate base and still walk out looking polished.

Moisture that lasts without stickiness: The serum spreads fresh and settles moist and smooth. Shikuwasa Extract GL and glycerin keep your skin moisturized through the day, so you stay comfortable without a sticky film or tight feeling.

A bright glow you will notice: The tone-up effect makes spots and color unevenness less noticeable and leaves a bright, glossy finish. Dryness fine lines also look less noticeable, so your skin looks fresh from morning to evening.

How to Use

Finish your morning skincare

Spread it with your whole fingers

Press it in to blend

Who Is This For

The Spot-Prevention Planner: You want clear, even skin and you know spots are easier to prevent than to fix. This medicated serum protects you from daytime UV with SPF50+ PA++++ and also works on how spots form, with two whitening actives, 4MSK and m-tranexamic acid, that suppress melanin production. It feels fresh and non-sticky, keeps skin moisturized and works as a base that helps foundation go on and last. It is fragrance-free and allergy-tested. Use it as the last step of your morning care, and it washes off with your normal cleanser.

Product Story

We built this serum around a simple discovery: daytime spot risk could not be stopped by UV protection alone. When UV and inflammation stimulate melanocytes, they produce excess melanin, and turnover can stall. So we paired two whitening actives with SPF50+ PA++++ protection in one fresh serum. We made it fragrance-free, tested it for allergies, and gave it a glowing finish that works as a makeup base. Today this serum is the one step that keeps your skin protected in daylight.

What's Inside

HAKU Day Brightening UV

Care Guide

Storage: Store away from direct sunlight and high heat, close the cap firmly after use, and keep out of reach of infants.

Shelf Life: We ship with a minimum of 6 months remaining shelf life.

Important: For external use only. Stop use and ask a healthcare professional if redness, swelling or itching appears, and do not use on wounds or rashes. Rinse right away if it gets into the eyes. Consult your healthcare provider before use if you are pregnant, nursing, or taking medication.

Ingredients and Materials

4-Methoxysalicylic Acid Potassium Salt: Product ingredient

Tranexamic Acid: Product ingredient

Tangerine Peel Extract: Product ingredient

Sodium Acetylhyaluronate: Product ingredient

Ectoin: Product ingredient

Concentrated Glycerin: Product ingredient

2-O-Ethyl-L-Ascorbic Acid: Product ingredient

Tea Extract (1): 1

Gardenia Extract: Product ingredient

Hawthorn Extract: Product ingredient

Purified Water: Product ingredient

Butylene Glycol (1,3): 1,3

Diisopropyl Sebacate: Product ingredient

Ethanol: Product ingredient

Ethylhexyl Methoxycinnamate: Product ingredient

Isopropyl Myristate: Product ingredient

Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine: Product ingredient

Diethylaminohydroxybenzoyl Hexyl Benzoate: Product ingredient

Hydrated Silica: Product ingredient

Polyoxyethylene-Methylpolysiloxane Copolymer: Product ingredient

Methylpolysiloxane: Product ingredient

Sorbitan Sesquiisostearate: Product ingredient

Dimethylacrylamide/Sodium Acryloyldimethyltaurate Crosspolymer: Product ingredient

Polyoxyethylene Hydrogenated Castor Oil: Product ingredient

Succinoglycan: Product ingredient

Dibutylhydroxytoluene: Product ingredient

Trisodium EDTA: Product ingredient

dl-alpha-Tocopherol: Product ingredient

Sodium Stearoyl Methyltaurate: Product ingredient

Sodium Metabisulfite: Product ingredient

Sodium Metaphosphate: Product ingredient

Talc: Product ingredient

Tetrahydrotetramethylcyclotetrasiloxane: Product ingredient

Tetradecene: Product ingredient

Methyl Hydrogen Polysiloxane: Product ingredient

Aluminum Oxide: Product ingredient

Phenoxyethanol: Product ingredient

Low-Temperature-Fired Zinc Oxide: Product ingredient

Titanium Mica: Product ingredient

Titanium Dioxide: Product ingredient

Red Iron Oxide: Product ingredient

Yellow Iron Oxide: Product ingredient

Barium Sulfate: Product ingredient

Comparison

Quick Answer

Medicated daytime whitening serum in a 45ml bottle with SPF50+ PA++++ that cares for daytime spot risk with two whitening actives. Made in Japan by Shiseido, it works as a makeup base, feels fresh and non-sticky, and is fragrance-free and allergy-tested.

The Spot-Prevention Planner

You believe in preventing spots before they appear. This serum goes beyond sunscreen and works on how melanin forms, so your skin stays clear in the years ahead.

The Morning Minimalist

You want fewer steps in the morning. One serum protects from UV, cares for spots and works as a base, so you save a product and keep your routine short.

The Loyal Premium Devotee

You have used the same brand for years and accept the price because it works. A trusted formula and steady results make this the bottle you reorder with confidence.

The Sensitive-Skin Checker

You test everything because some products sting. A fragrance-free, allergy-tested formula with a patch-test habit lets you try this serum with more comfort and care.

Frequently Asked Questions

Is this the genuine Japan-market serum?

Yes. This is the 45ml Day Brightening UV serum as sold in Japan, made in Japan by Shiseido. It arrives in its original carton with the Japanese label intact, and the size, SPF and claims match the product description that appears on this page, so you can compare before you order and know exactly which bottle you will receive.

How do I use the serum?

Use it as the last step of your morning skincare. Dispense a small amount, spread it widely with your whole fingers from the center of your face outward, then press gently with your palms so it fits the skin. You can wear it alone or under foundation, and it washes off with a normal facial cleanser. Use a makeup remover if foundation is on top.

What are the two whitening actives?

Our two actives are 4-methoxysalicylic acid potassium salt, called 4MSK, and tranexamic acid. 4MSK focuses on accumulating melanin and suppresses excess pigment, while m-tranexamic acid calms the activation of melanocytes. Both suppress melanin production to prevent spots and freckles, and they work alongside SPF50+ PA++++ UV protection during the day.

Is it suitable for sensitive skin?

The serum is fragrance-free, allergy-tested and formulated to be less likely to cause acne, but the tests do not guarantee that no one will react. It contains ethanol, so it may sting on freshly shaved skin or near the eyes. Patch test first, keep it away from your eyes and stop use if redness, swelling or itching appears.

Can I use it as a makeup base?

Yes. The glowing, smoothing finish helps foundation go on better and last longer, and it makes spots and uneven color less noticeable on its own. Coverage is light, so it is a base and not a foundation. Apply it as the last step of your skincare, let it settle for a moment, then apply your usual makeup on top.

How long does shipping take?

We ship directly from Japan, and orders usually arrive within 7-14 business days. Every order includes tracking, so you can follow the parcel from our shipment to your door. We also ship with a minimum of 6 months of shelf life remaining, so the product reaches you well within its usable period. Check our website for current pricing and delivery options.