HAKU Day Brightening UV SPF50+ PA++++ 45mL

About Product

SHISEIDO HAKU Day Brightening UV SPF50+ PA++++ 45mL

Protect your skin against UV exposure while taking a proactive approach to dark spot prevention with SHISEIDO HAKU Day Brightening UV, a medicated daytime brightening serum that combines advanced sun protection, brightening skincare and a radiant makeup base in one formula.

Developed through HAKU's ongoing pigmentation research, this multifunctional treatment features two approved brightening active ingredients, Tranexamic Acid and 4MSK, which help suppress melanin production to prevent dark spots and freckles.

With SPF50+ PA++++, the formula provides high-level UV protection while delivering moisturising care and an immediate tone-up effect. Its light-reflecting finish helps make dark spots and uneven skin tone appear less noticeable, leaving the complexion looking brighter, smoother and naturally radiant.

Designed as the final step of your morning skincare routine, HAKU Day Brightening UV can also be used as a makeup primer, making it an effortless addition to your daily beauty routine.

Key Benefits

• Medicated daytime brightening serum with SPF50+ PA++++

• Combines brightening skincare, UV protection and makeup primer functions

• Contains two approved brightening active ingredients: Tranexamic Acid and 4MSK

• Helps suppress melanin production to prevent dark spots and freckles

• Developed through SHISEIDO HAKU's advanced pigmentation research

• Contains moisturising Shikuwasa Extract GL

• Creates an immediate tone-up effect for brighter-looking skin

• Helps visually soften the appearance of dark spots and uneven skin tone

• Leaves a naturally radiant, luminous-looking finish

• Can be used underneath foundation for additional glow

• Designed for daily morning skincare

• Can be removed with a regular facial cleanser when worn alone

More Than Sunscreen: Daytime Brightening Care

HAKU Day Brightening UV was developed around an important consideration in pigmentation prevention: daytime skincare involves more than UV protection alone.

While sunscreen helps protect against ultraviolet radiation, HAKU's research also focuses on the pathways involved in melanin production during daytime environmental exposure.

The brand describes this approach as addressing daytime dark spot risk.

By combining two medicated brightening ingredients with SPF50+ PA++++, HAKU Day Brightening UV provides both UV protection and active dark spot prevention in a single morning skincare step.

Its approved brightening action is to help suppress melanin production, thereby preventing dark spots and freckles.

The formula does not remove existing pigmentation or guarantee that new dark spots will never develop.

Two Medicated Brightening Active Ingredients

HAKU Day Brightening UV incorporates two approved Japanese quasi-drug brightening ingredients.

1. m-Tranexamic Acid (Tranexamic Acid)

Tranexamic Acid is an approved brightening active ingredient used in Japanese medicated skincare.

It helps suppress melanin production to prevent the formation of dark spots and freckles.

In HAKU Day Brightening UV, it contributes to the product's preventative daytime brightening care.

2. 4MSK (Potassium 4-Methoxysalicylate)

4MSK is a brightening active ingredient developed by SHISEIDO.

It also helps suppress melanin production to prevent dark spots and freckles.

The combination of Tranexamic Acid and 4MSK provides HAKU's dual-active approach to daytime brightening care.

Shikuwasa Extract GL for Moisturising Care

The formula features Shikuwasa Extract GL, a moisturising ingredient combination highlighted by HAKU.

According to the supplied Japanese ingredient description, this complex contains:

• Chinpi Extract: A citrus peel-derived extract used for moisturising care

• Concentrated Glycerin: A humectant that helps maintain skin hydration

This combination complements the serum's UV protection and medicated brightening functions by helping keep the skin moisturised throughout the day.

SPF50+ PA++++: High-Level Daily UV Protection

HAKU Day Brightening UV provides SPF50+ PA++++, the highest labelled protection grades within Japan's SPF and PA rating systems.

SPF50+ indicates a high level of protection against UVB radiation, which contributes to sunburn.

PA++++ indicates a very high level of protection against UVA radiation, which contributes to photoageing and pigmentation concerns.

Together, these ratings make the product suitable for incorporating into a daily sun protection routine.

For prolonged outdoor exposure, apply sunscreen generously and reapply as needed, particularly after sweating, swimming or wiping the skin.

Immediate Tone-Up Effect for Radiant-Looking Skin

Beyond its skincare benefits, HAKU Day Brightening UV creates an immediate cosmetic tone-up effect.

The formula is designed to help make dark spots and uneven skin tone appear less noticeable through a light-enhancing finish.

It leaves the complexion looking:

• Brighter and more luminous

• More even in appearance

• Naturally radiant

• Smooth and refreshed

The tone-up effect is a temporary cosmetic result, separate from the product's medicated melanin-suppression benefits.

Individual results may vary depending on skin tone and application.

A Radiant Makeup Primer

HAKU Day Brightening UV can also be used as a makeup primer.

When applied before foundation, its luminous finish helps create a brighter, more radiant-looking complexion.

HAKU specifically recommends pairing it with the brand's Medicated Brightening Serum Foundation to enhance the overall glow of the finished makeup.

This multifunctional approach allows you to combine three steps in one product:

• Medicated brightening skincare

• High-level UV protection

• Radiance-enhancing makeup primer

It is particularly convenient for those who prefer a streamlined morning routine without sacrificing brightening care or sun protection.

Pair with HAKU Melanofocus IV

For a more comprehensive brightening skincare routine, HAKU recommends combining Day Brightening UV with its signature HAKU Melanofocus IV Medicated Brightening Serum.

The two products have complementary roles.

Melanofocus IV provides dedicated brightening serum care, while Day Brightening UV adds UV protection and a radiant makeup base for daytime use.

Together, they form HAKU's recommended approach to maintaining a consistent dark spot prevention routine.

How to Use

Use HAKU Day Brightening UV as the final step of your morning skincare routine.

Step 1: Dispense the Product

Take an amount slightly smaller than a Japanese 1-yen coin into your palm.

Place the product across five areas of the face:

• Both cheeks

• Forehead

• Nose

• Chin

Rather than applying small dots, spread the product into broader circular areas as you place it onto the skin.

Step 2: Blend Outwards

Using the full length of your fingers, spread the product from the centre of the face towards the outer edges.

Use broad, horizontal movements rather than small fingertip strokes to help distribute the formula evenly.

Step 3: Press Gently into the Skin

Gently press the product against the skin with your hands to help it settle and adhere evenly.

Allow the finish to set before applying foundation, if desired.

How to Remove

When worn alone, HAKU Day Brightening UV can be removed with a regular facial cleanser.

When used as a makeup primer underneath foundation or other makeup, use an appropriate makeup remover before cleansing.

Who Is It For?

HAKU Day Brightening UV may be particularly appealing to those who:

• Want high-level daily UV protection alongside brightening skincare

• Are concerned about preventing new dark spots and freckles

• Prefer skincare containing approved Japanese medicated brightening ingredients

• Want a brighter-looking complexion without relying entirely on foundation

• Are looking for a sunscreen that can double as a makeup primer

• Prefer a naturally radiant rather than flat-looking makeup base

• Already use HAKU Melanofocus IV and want complementary daytime care

• Want to simplify their morning skincare routine

Product Details

• Brand: SHISEIDO HAKU

• Product Name: Day Brightening UV

• Japanese Name: HAKU デイブライトニングUV

• Japanese Product Type: 薬用 日中美白美容液UV

• Category: Medicated Daytime Brightening Serum & UV Protector

• Classification: Japanese Quasi-Drug (医薬部外品)

• Net Volume: 45mL

• Sun Protection: SPF50+ PA++++

• Brightening Active 1: Tranexamic Acid (m-Tranexamic Acid)

• Brightening Active 2: 4MSK (Potassium 4-Methoxysalicylate)

• Featured Moisturising Complex: Shikuwasa Extract GL

• Finish: Radiant, Tone-Up Effect

• Makeup Function: Can Be Used as a Primer

• Recommended Application: Final Step of Morning Skincare

• Removal: Regular Facial Cleanser When Worn Alone; Makeup Remover When Used with Foundation

People Also Ask

What is HAKU Day Brightening UV?

HAKU Day Brightening UV is a medicated daytime brightening serum with SPF50+ PA++++. It combines dark spot prevention, UV protection and a radiance-enhancing makeup primer in one product.

Does HAKU Day Brightening UV help prevent dark spots?

Yes. It contains two approved brightening ingredients, Tranexamic Acid and 4MSK, which help suppress melanin production to prevent dark spots and freckles.

Can HAKU Day Brightening UV be used as a makeup primer?

Yes. It can be applied before foundation to create a brighter, more radiant-looking finish. HAKU particularly recommends pairing it with the brand's Medicated Brightening Serum Foundation.

What is the difference between HAKU Day Brightening UV and Melanofocus IV?

HAKU Melanofocus IV is a dedicated medicated brightening serum, while Day Brightening UV combines brightening ingredients with SPF50+ PA++++ and an immediate tone-up effect for daytime use.

Do I need makeup remover to wash off HAKU Day Brightening UV?

When worn alone, it can be removed with a regular facial cleanser. If you apply foundation or other makeup over it, HAKU recommends using a makeup remover.