FAS The Plump Serum Foundation 30mL

About Product

FAS The Plump Serum Foundation 30mL

One Stroke to Luminous, Plump-Looking Skin

A serum foundation created for the contradictions of adult base makeup: you want coverage, but not heaviness; luminosity, but not a sheer formula that leaves every concern visible.

FAS The Plump Serum Foundation combines natural-looking coverage with fresh translucency and glow. Its innovative gel-serum texture smooths over pores, fine lines and unevenness while forming a flexible, moisturizing veil that moves comfortably with the skin.

Designed to work beautifully without a separate makeup primer, it delivers a smooth, naturally brightened complexion with a healthy, light-filled finish.

30mL

Coverage Without the Heavy Look

Adult skin can make foundation particularly difficult.

Layering more product over pores, fine lines or uneven tone can make makeup look thick, collect in texture or crease as the day goes on. On the other hand, achieving a natural, translucent finish often seems to require careful application and advanced technique.

FAS developed Memory Oil Gel to address both concerns.

An oil with excellent affinity for the skin is gelled using proprietary technology, creating a cushiony texture with both elasticity and recovery.

The gel spreads smoothly across the complexion without emphasizing uneven texture and forms a soft, flexible film over the skin.

The result is coverage exactly where you need it, without sacrificing the natural dimension and luminosity of the complexion.

Memory Oil Gel Technology

At the heart of The Plump Serum Foundation is FAS's Memory Oil Gel, featuring Hydrogenated Styrene/Butadiene Copolymer as a texture-adjusting ingredient.

Its resilient, springy gel structure helps the foundation:

• Smooth the appearance of pores and fine lines
• Adhere comfortably to the skin
• Minimize uneven or patchy application
• Create an even finish without complicated techniques
• Reflect abundant light for enhanced luminosity and translucency

According to FAS, this is the first commercially available foundation in Japan formulated with Hydrogenated Styrene/Butadiene Copolymer, based on the brand's June 2026 research of cosmetic ingredient databases.

Four Benefits in One Foundation

01. Flexible, Skin-Hugging Adhesion

The soft, cushiony gel film follows facial movement while fitting smoothly over the skin.

It helps soften the appearance of pores and uneven texture rather than settling noticeably into them.

02. No Special Technique Required

The gel-serum texture spreads smoothly and evenly, helping prevent patchiness.

Its recovery properties allow the foundation film to settle into a more uniform finish, making polished application easier even without advanced makeup techniques.

03. Light-Filled Plump Glow

The translucent gel film captures and reflects light.

Memory Oil Gel enhances reflected light to create the impression of skin illuminated from within, with healthy-looking translucency, dimension and glow rather than a flat, heavily made-up finish.

04. Moisturizing Comfort

The moisturizing oil gel adheres closely to the complexion and helps protect against daytime dryness.

The result feels supple and comfortable while maintaining a smooth, refined appearance.

Serum Foundation Meets Fermented Skincare

FAS goes beyond simply adding skincare ingredients to makeup.

As a fermented aging-care* brand, FAS developed The Plump Serum Foundation around the fact that foundation remains in contact with the skin for many hours each day.

The formula therefore incorporates skincare ingredients used within the FAS skincare philosophy, including two proprietary ingredients:

Black Rice Ferment Extract — Saccharomyces/Rice Ferment Filtrate, a moisturizing ingredient.

Black Soybean Peptide — Hydrolyzed Soybean Extract, a moisturizing ingredient.

*Aging care refers to moisturizing care appropriate for your age.

Time-Release Aging Care

FAS combines water-based and oil-based skincare components that interact with the skin at different rates.

Water-based ingredients blend quickly with the skin, while oil-based ingredients penetrate gradually into the stratum corneum.

This time-release approach is designed to maintain rich skincare benefits while the foundation is being worn throughout the day.

The formula also incorporates Fermented Fig Oil (Rhodotorula/Fig Fruit Ferment Oil) as a skin-conditioning ingredient.

A New Gel-Serum Foundation Texture

The Plump Serum Foundation has a distinctive, plump gel-serum consistency.

Although the formula feels rich and substantial, it spreads effortlessly in a thin layer across the complexion.

Once applied, it creates a soft, moisturizing film that helps the skin appear:

Smooth. Luminous. Translucent. Naturally plump.

Its self-smoothing recovery properties also help create a polished finish without requiring complicated application techniques.

No Primer Required

The foundation has been designed to create a naturally brightened, refined complexion without requiring a separate makeup primer.

Simply apply it after completing your skincare routine.

Its smoothing gel texture helps refine the skin while providing coverage and luminosity in a single step—ideal for anyone who wants to simplify their morning base makeup routine.

12-Hour Wear

The Plump Serum Foundation is designed to maintain its beautiful finish throughout the day.

FAS reports 12-hour makeup wear performance, based on third-party testing measuring the makeup effect for up to 12 hours after application.

The formula has also passed resistance testing for:

• Sweat
• High temperatures
• High humidity

This makes it particularly suitable for maintaining a fresh-looking complexion and helping reduce the appearance of the tired, uneven finish that can develop later in the day.

Results may vary by individual.

Available in 5 Shades

The collection consists of four Neutral shades and one Cool shade.

The entire range is intentionally designed slightly brighter because the foundation itself provides a tone-up effect without requiring primer.

Once blended into the skin, the shades are designed to look naturally integrated rather than chalky, creating the impression of luminosity coming from within.

01N — Neutral

A light neutral beige that does not lean strongly yellow or pink.

Recommended for: Those who prefer a noticeably brighter, tone-up finish.

02N — Neutral

A bright neutral beige that blends naturally with both yellow and pink undertones.

Recommended for: Those who usually choose a slightly brighter foundation shade.

02C — Cool

A softly pink-toned shade at a similar brightness level to 02N.

It adds subtle rosiness to the complexion for a fresh, lively appearance.

Recommended for: Those who want both translucency and a naturally healthy-looking flush.

03N — Neutral

The standard neutral beige in the collection.

Recommended for: Those who normally use a standard Japanese foundation shade.

04N — Neutral

The deepest neutral beige in the range.

Recommended for: Those who usually wear slightly deeper foundation shades or prefer a more natural, less brightened finish.

02N vs. 02C: Which Should I Choose?

Both shades offer a similar level of brightness. The main difference is the undertone and the effect you want to create.

Choose 02N if your skin does not lean particularly pink or yellow, or if you prefer a natural neutral-beige finish.

Choose 02C if your complexion tends to look dull or if you want to introduce a subtle pink tone for a fresher, more translucent-looking finish.

FAS The Plump Serum Foundation Shade Guide

Why You'll Love It

Coverage + translucency — Visually smooths pores, fine lines and uneven-looking areas without creating an overly heavy finish.

Plump luminosity — Light-reflecting Memory Oil Gel creates a fresh, dimensional glow.

Serum-like skincare approach — Features fermented and moisturizing skincare ingredients for comfortable daytime wear.

No primer required — Designed to smooth, tone and perfect the complexion in one step.

Easy application — The self-smoothing gel texture helps create an even finish without complicated techniques.

12-hour wear — Tested for long-lasting makeup performance and resistance to sweat, heat and humidity.

How to Choose Your Shade

If you normally use a standard Japanese foundation shade, start with 03N.

For a one-tone brighter finish, consider 01N or 02N.

For extra rosiness and translucency, choose 02C.

If you usually select a slightly deeper foundation shade, 04N is the best starting point.

Because The Plump Serum Foundation is designed to provide a tone-up effect on its own, the overall shade range runs somewhat brighter than conventional foundation ranges.

Product Details

Product: FAS The Plump Serum Foundation
Size: 30mL
Type: Serum Liquid Foundation
Finish: Luminous / Natural / Translucent
Coverage: Buildable natural coverage
Primer: Designed to be used without a separate makeup primer
Shades: 01N, 02N, 02C, 03N, 04N
Wear: Up to 12 hours*

*Based on makeup-effect testing conducted by a third-party organization. Individual results may vary.

Frequently Asked Questions

Does FAS The Plump Serum Foundation require a primer?

No. It is specifically designed to create a smooth, naturally tone-up finish without a separate makeup primer, making it possible to move directly from skincare to foundation.

Is FAS The Plump Serum Foundation suitable for mature skin?

The formula was developed around common adult-skin makeup concerns, including visible pores, fine lines, uneven texture, dryness and the tendency for heavier foundation to crease or appear uneven.

Is the finish matte or dewy?

It has a natural luminous finish. Memory Oil Gel reflects light to create translucency and dimension rather than a flat matte appearance.

Which shade is the standard shade?

03N is FAS's recommended reference for customers who normally use a standard foundation shade.

What is the difference between 02N and 02C?

Both are relatively bright shades. 02N is neutral beige, while 02C contains a subtle pink undertone designed to add healthy-looking color and enhance the impression of translucency.

Is FAS The Plump Serum Foundation long-lasting?

Yes. FAS reports up to 12 hours of makeup wear, and the formula has also undergone sweat, high-temperature and high-humidity resistance testing.