• CB Duo rejuvenating sachet
  • Two dark gray skincare mask boxes labeled STEM CELL + COLLAGEN and VITA C, shown on a beige background with text describing a two-step ritual.
  • A woman holds a K-Beauty skincare card in her hand, with promotional text on the left side. The card is dark gray with white text reading &
  • Two black skincare sachets labeled &
  • Duo Sachet Rejuvenating
  • A four-step skincare routine infographic showing a woman&
  • Four women of different ages and skin tones smiling closely together against a warm beige background
  • A skincare set displayed on a light stone surface with lifestyle props. The main product is a black two-step mud mask duo sachet labeled &
  • Two skincare mask packets are displayed side by side on a marble slab with styled ingredients behind them. The left packet is white and labeled &
  • CB Duo rejuvenating sachet back ingredients
1 10

Rejuvenating Duo Sachet 5-Pack

REJUVENATE + BRIGHTEN

5 TWO-STEP K-BEAUTY RITUALS
Rejuvenate, then brighten for firmer-looking skin and a luminous glow.

  • ✓ HELPS FIRM + REFINE
  • ✓ BRIGHTENS DULL-LOOKING SKIN
  • ✓ BOOSTS RADIANCE
  • ✓ CRAFTED IN THE USA
$19.99
$24.99
$19.99
Shipping calculated at checkout.

The Rejuvenating Duo begins with a mineral-rich Bentonite + Kaolin clay mask with Charcoal, Hydrolyzed Collagen and Apple Fruit Culture Extract to help firm, smooth and refine the look of skin.

Follow with VITA C, a Vitamin C serum that helps brighten skin tone, reduce the appearance of dark spots and support a more radiant-looking complexion.

Two purposeful steps. One elevated K-Beauty ritual

About This Ritual

Skincare works better when each step has a purpose.

The Rejuvenating Duo is designed to rejuvenate first, then brighten. Step 1 pairs Bentonite + Kaolin with Charcoal, Hydrolyzed Collagen and Apple Fruit Culture Extract to help firm, smooth and refine the look of skin. Step 2 follows with VITA C to help brighten skin tone, reduce the appearance of dark spots and enhance radiance.

Each box includes 5 complete two-step K-Beauty treatments for firmer-looking skin and a luminous glow.

Rejuvenate. Brighten. Glow.
Key benefits

Helps strengthen, fortify, and firm the appearance of skin while supporting a smoother, more youthful-looking complexion. VITA C follows to help reduce the appearance of dark spots, brighten skin tone, support collagen, and promote a radiant-looking glow.
Ingredients

STEP 01 - REJUVENATE

Aqua, Kaolin, Calcium Bentonite, Helianthus Annuus Seed Oil,
Phenoxyethanol, Ethylhexylglycerin, Palmitic Acid, Stearic Acid, Charcoal,
Propylene Glycol, Lavandula Angustifolia Oil, Tocopheryl Acetate, Hydrolyzed Collagen, Malus Domestica Fruit Culture Extract, Xanthan Gum, Glycerin,
Lecithin.

STEP 02 - BRIGHTEN

Aqua, Glycerin, Sodium Ascorbyl Phosphate, Methylsulfonylmethane, Phenoxyethanol, Ethylhexylglycerin, Helianthus Annuus Seed Oil, Vitamin E (Tocopheryl Acetate), Xanthan Gum.
How to use

01 — APPLY
Apply the Purifying Mud Mask evenly to clean skin.

02 — RINSE
Leave on for 10–15 minutes. Rinse thoroughly with warm water and pat dry.

03 — HYDRATE
Apply Vita C to clean, dry skin and let it absorb.

Then enjoy the glow.
Why You'll Love it
  • Supports skin renewal while improving firmness and elasticity
  • Brightens and evens tone for a more radiant complexion
  • Helps strengthen and protect skin for long term vitality
CB Duo rejuvenating sachet
Two dark gray skincare mask boxes labeled STEM CELL + COLLAGEN and VITA C, shown on a beige background with text describing a two-step ritual.
A woman holds a K-Beauty skincare card in her hand, with promotional text on the left side. The card is dark gray with white text reading &
Two black skincare sachets labeled &
Duo Sachet Rejuvenating
A four-step skincare routine infographic showing a woman&
Four women of different ages and skin tones smiling closely together against a warm beige background
A skincare set displayed on a light stone surface with lifestyle props. The main product is a black two-step mud mask duo sachet labeled &
Two skincare mask packets are displayed side by side on a marble slab with styled ingredients behind them. The left packet is white and labeled &
CB Duo rejuvenating sachet back ingredients

TWO STEPS. ONE RITUAL.

Rejuvenate first. Brighten second.

STEP 1

REJUVENATE

BENTONITE + KAOLIN
CLAY MASK

CHARCOAL + STEM CELL
+ COLLAGEN

A mineral-rich clay mask designed to help support firmer, smoother, more youthful-looking skin while giving skin a fresh, deeply cleansed feel.

STEP 2

BRIGHTEN

VITAMIN C

Follow the mask with a lightweight Vitamin C serum designed to help reduce the appearance of dark spots, brighten the look of skin tone, and support collagen for a radiant-looking glow.

Deeply cleanses DEEPLY
CLEANSES
Helps firm HELPS
FIRM
Refines skin REFINES
SKIN
Brightens skin BRIGHTENS
SKIN
Boosts radiance BOOSTS
RADIANCE
Helps defend skin HELPS
DEFEND SKIN

TWO STEPS.
ONE RITUAL.

Rejuvenate first. Brighten second.

California Biology Rejuvenate and Brighten Duo Sachet
STEP 1

REJUVENATE

BENTONITE + KAOLIN
CLAY MASK

CHARCOAL + STEM CELL
+ COLLAGEN

A mineral-rich clay mask designed to help support firmer, smoother, more youthful-looking skin while giving skin a fresh, deeply cleansed feel.

Deeply cleanses DEEPLY
CLEANSES
Helps firm HELPS
FIRM
Refines skin REFINES
SKIN
STEP 2

BRIGHTEN

VITAMIN C

Follow the mask with a lightweight Vitamin C serum designed to help reduce the appearance of dark spots, brighten the look of skin tone, and support collagen for a radiant-looking glow.

Brightens skin BRIGHTENS
SKIN
Boosts radiance BOOSTS
RADIANCE
Helps defend skin HELPS
DEFEND SKIN

How to Use

  • Apply Rejuvenating Mask

    Apply

    Apply the Purifying Mud Mask evenly to clean skin. Leave on for 10–15 minutes.

  • Rinse mask off face

    Rinse

    Rinse thoroughly with warm water and pat dry.

  • Apply Rejuvenating Serum

    Apply Serum

    Apply VITA C to clean, dry skin and let it absorb. Then enjoy the glow.
STEP 1

REJUVENATE

BENTONITE + KAOLIN CLAY MASK

CHARCOAL + STEM CELL + COLLAGEN

A mineral-rich clay mask designed to help support firmer, smoother, more youthful-looking skin while giving skin a fresh, deeply cleansed feel.

Deep cleansing DEEP
CLEANSING
Smooths texture SMOOTHS
TEXTURE
Collagen boosting COLLAGEN
BOOSTING
California Biology Rejuvenating Duo Sachet with charcoal clay texture
STEP 1

REJUVENATE

BENTONITE + KAOLIN CLAY MASK

CHARCOAL + STEM CELL + COLLAGEN

A mineral-rich clay mask designed to help support firmer, smoother, more youthful-looking skin while giving skin a fresh, deeply cleansed feel.

Deep cleansing DEEP
CLEANSING
Smooths texture SMOOTHS
TEXTURE
Collagen boosting COLLAGEN
BOOSTING
STEP 2

BRIGHTEN

VITAMIN C

A lightweight, fast-absorbing serum that targets dark spots, unifies skin tone, and supports collagen to unlock a bright, radiant glow.

Brightens skin BRIGHTENS
SKIN
Fades spots FADES
SPOTS
Supports skin barrier SUPPORTS
SKIN BARRIER
California Biology Brightening Vitamin C serum
STEP 2

BRIGHTEN

VITAMIN C

A lightweight, fast-absorbing serum that targets dark spots, unifies skin tone, and supports collagen to unlock a bright, radiant glow.

Brightens skin BRIGHTENS
SKIN
Fades spots FADES
SPOTS
Supports skin barrier SUPPORTS
SKIN BARRIER

Purposeful Ingredients. Two Distinct Steps.

STEP 01 —Rejuvenate
STEP 02 — Brighten
Clay and Charcoal

CALCIUM BENTONITE + KAOLIN + CHARCOAL

Helps clear away buildup to leave skin looking fresh and refined.

Apple Stem Cell and Collagen

APPLE FRUIT CULTURE EXTRACT + HYDROLYZED COLLAGEN

Helps support a firmer, more resilient-looking complexion and smoother, more supple skin.

VITA C

VITA C

Helps brighten skin, reduce the look of dark spots, and support collagen.

Vitamin E Tablets

VITAMIN E

Helps nourish and protect skin while supporting a softer, smoother feel.

STEP 01 —Rejuvenate

Aqua, Kaolin, Bentonite, Helianthus Annuus Seed Oil, Phenoxyethanol, Ethylhexylglycerin, Palmitic Acid, Stearic Acid, Propylene Glycol, Pink Grapefruit (Citrus Paradisi) Peel Oil, Honey, Aloe Barbadensis Leaf.

STEP 02 — Brighten

Aqua, Niacinamide, Helianthus Annuus Seed Oil, Sodium Hyaluronate, Glycerin, Tocopheryl Acetate, Palmitic Acid, Stearic Acid, Phenoxyethanol, Ethylhexylglycerin, Xanthan Gum.
California Biology Purify and Rejuvenate Duo Sachets

CHOOSE YOUR RITUAL.

PURIFY + HYDRATE

For deep cleansing and replenishing hydration.

SHOP PURIFY

REJUVENATE + BRIGHTEN

For smoother, firmer-looking skin and a radiant-looking glow.

SHOP REJUVENATE

CHOOSE YOUR
RITUAL.

California Biology Purify and Hydrate Duo Sachet

PURIFY + HYDRATE

For deep cleansing and replenishing hydration.

SHOP PURIFY
California Biology Rejuvenate and Brighten Duo Sachet

REJUVENATE + BRIGHTEN

For smoother, firmer-looking skin and a radiant-looking glow.

SHOP REJUVENATE

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