Ingredient Science

The Science Behind Skin-Loving Foundation: Hyaluronic Acid, Rice Lees, and Cherry Blossom Extract

Introduction

Foundation has traditionally been viewed as a cosmetic product—designed to cover, smooth, and enhance the appearance of the skin.

But modern beauty is evolving.

Today, the most advanced formulations are designed not only to improve how the skin looks, but also to support how it functions throughout the day.

This is where skincare-infused foundation comes in.

At ROUSHÉ, our Renaissance Radiant Longwear Hydrating Foundation was developed using ingredients that go beyond surface-level results.

Instead of simply sitting on the skin, these ingredients work to support hydration, texture, and overall skin appearance.

Why Ingredients Matter in Foundation

The performance of a foundation is directly tied to the ingredients within it.

A well-formulated foundation should do more than provide coverage. It should:

• maintain hydration throughout wear
• improve the appearance of skin texture
• support a smooth, even finish
• help the skin look more radiant over time

This requires a combination of hydrating, protective, and skin-supportive ingredients.

The Three Key Ingredients Behind Renaissance Foundation

Hyaluronic Acid

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Rice Ferment Skincare: Why Rice Lees Extract Is One of Japan’s Best-Kept Beauty Secrets

Introduction

For centuries, Japanese skincare traditions have relied on one surprisingly powerful ingredient: fermented rice.

Long before modern cosmetic laboratories existed, workers in Japanese sake breweries noticed something unusual. While their hands were constantly exposed to fermentation liquids, the skin on their hands appeared remarkably smooth, soft, and youthful.

Scientists later discovered the reason: the fermentation byproduct known as Rice Lees Extract.

Today, this ingredient has become one of the most respected components in advanced skincare formulations.

What Is Rice Lees Extract?

Rice Lees Extract comes from sake fermentation, the traditional Japanese process used to produce rice wine.

During fermentation, rice breaks down and releases a nutrient-rich mixture containing:

  • amino acids
  • vitamins
  • peptides
  • antioxidants
  • natural moisturizing compounds

This nutrient profile makes rice fermentation an ideal ingredient for supporting skin hydration, tone clarity, and barrier health.

In skincare, Rice Lees Extract helps deliver these nutrients directly to the skin’s surface, where they support visible smoothness and radiance.

Why Fermentation Makes Ingredients More Powerful

Fermentation enhances ingredients in two important ways.

  1. Increased Bioavailability

Fermentation breaks large molecules into smaller, skin-friendly compounds, allowing ingredients to absorb more effectively.

  1. Higher Nutrient Concentration

Fermented ingredients often contain higher levels of beneficial compounds such as amino acids and antioxidants.

These compounds help support skin that looks:

  • smoother
  • brighter
  • more hydrated
  • more even in tone

Because of this, fermented ingredients

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Top Hydrating Skincare Essentials for Dry Skin According to Roushé

Dry skin can be a persistent challenge. That tight, uncomfortable feeling. The flaking. The dull texture that no amount of water seems to fix. When skin feels parched, it needs more than just a surface solution—it needs real, restorative care.

Roushé a luxury beauty brand known for inclusive skincare and clean formulations, has created a range of products specifically designed to support dry skin without compromising elegance or performance. These products don’t just sit on the surface—they work with your skin to restore comfort, glow, and long-lasting hydration.

If you’ve been searching for skin care that truly addresses dryness, here are three Roushé products worth exploring.

Aurevella Ultimate Youth Restoring Serum

For those who want deep hydration without heaviness, this serum delivers. The Aurevella Ultimate Youth Restoring Serum is a lightweight formula that targets the visible signs of dryness—fine lines, dullness, and tight texture—while supporting collagen production over time.

It absorbs quickly and layers well with other products, making it a go-to option for both morning and evening routines. The formula helps visibly smooth rough texture and awaken tired-looking skin with a brighter, healthier tone.

Apply to clean, slightly damp skin and follow with your favorite moisturizer for best results.

Aurevella Ultimate Youth Restoring Cream

When skin

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