• A dual-step facial mask sachet set by CB, featuring a Step 1 Aloe + Honey mud mask and a Step 2 Hyaluronic Acid + Niacin amide serum, shown on a clean
  • Two-step skincare duo sachet set on a clean white background with soft cream texture. The set includes a Purify step 1 mask packet and a Hydrate step 2 serum packet in a white DUO SACHET sleeve.
  • A woman in a beige top holds a K-Beauty card while promotional text on the left reads &
  • A skincare routine infographic showing a duo sachet of Purifying Mud Mask and Hyaluronic Acid Serum. The graphic outlines three steps: applying the purifying mud mask, rinsing and pat drying, and applying the hydrating serum.
  • A skincare infographic on a light beige background detailing the ingredients of a Duo Sachet Mask.
  • A four-step skincare routine graphic showing a woman applying, rinsing, and finishing a mask treatment. The steps are labeled 1 MASK, 2 RINSE, 3 SERUM, and 4 FINISH, with text describing the actions and product types.
  • Four women of different ages and skin tones posing closely together against a warm beige background,
  • A travel skincare set laid out on a light neutral surface, including a white pouch, a white card holder with embossed branding, a dual-sachet mask packet labeled Purifying Mud Mask,
  • Two skincare mask packets are displayed side by side on a marble slab with styled ingredients behind them.
  • A single flat skincare packet shown on a plain white background, with printed text describing CaliforniaBiology Hyaluronic Acid + Niacinamide Serum and Bentonite
  • A dual-step skincare duo sachet set on a white background, featuring a greenish-gray mud mask swipe on the left and a white serum on the right
1 11

Purifying Duo Sachet 5-Pack

PURIFY + HYDRATE

5 TWO-STEP K-BEAUTY RITUALS
Purify, then hydrate for fresh, smooth, glowing-looking skin.

  • ✓ DEEPLY CLEANSES PORES
  • ✓ REPLENISHES HYDRATION
  • ✓ SMOOTHS SKIN
  • ✓ CRAFTED IN THE USA
$19.99
$24.99
$19.99
Shipping calculated at checkout.

The Purifying Duo begins with a mineral-rich Bentonite + Kaolin clay mask with Aloe + Honey to help lift away excess oil and impurities while leaving skin feeling fresh, smooth and refined.

Follow with HYA + NIA, a Hyaluronic Acid + Niacinamide serum that delivers concentrated hydration while helping support smoother, firmer-looking skin and the skin barrier.

Two purposeful steps. One elevated K-Beauty ritual.

About This Ritual

Skincare works better when each step has a purpose.

The Purifying Duo is designed to cleanse first, then replenish. Step 1 helps lift away excess oil and impurities to leave skin feeling fresh and refined. Step 2 follows with targeted hydration to help restore softness, smoothness and balance after masking.

Each box includes 5 complete two-step treatments, bringing the thoughtful sequencing of K-Beauty into one simple ritual.

Purify. Hydrate. Glow.
Key benefits

Deeply cleanses pores while helping support hydrated, smoother-looking skin.

The HYA + NIA serum delivers deep hydration, supports firmer-looking skin and the skin barrier, and helps protect against free radicals.

Together, the two-step treatment helps improve the appearance of blemish-prone skin and leaves the complexion looking fresh and renewed
Ingredients

STEP 01 — PURIFY

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 — HYDRATE

Aqua, Niacinamide, Helianthus Annuus Seed Oil, Sodium Hyaluronate, Glycerin, Tocopheryl Acetate, Palmitic Acid, Stearic Acid, Phenoxyethanol, Ethylhexylglycerin, 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 HYA + NIA to clean, dry skin and let it absorb.

Then enjoy the glow.
Why You'll Love it
  • Balances purification and hydration for optimal skin health
  • Supports smooth texture, refined pores, and lasting moisture
  • Ideal for elevated at home rituals
  • Suitable for consistent weekly and daily use
A dual-step facial mask sachet set by CB, featuring a Step 1 Aloe + Honey mud mask and a Step 2 Hyaluronic Acid + Niacin amide serum, shown on a clean
Two-step skincare duo sachet set on a clean white background with soft cream texture. The set includes a Purify step 1 mask packet and a Hydrate step 2 serum packet in a white DUO SACHET sleeve.
A woman in a beige top holds a K-Beauty card while promotional text on the left reads &
A skincare routine infographic showing a duo sachet of Purifying Mud Mask and Hyaluronic Acid Serum. The graphic outlines three steps: applying the purifying mud mask, rinsing and pat drying, and applying the hydrating serum.
A skincare infographic on a light beige background detailing the ingredients of a Duo Sachet Mask.
A four-step skincare routine graphic showing a woman applying, rinsing, and finishing a mask treatment. The steps are labeled 1 MASK, 2 RINSE, 3 SERUM, and 4 FINISH, with text describing the actions and product types.
Four women of different ages and skin tones posing closely together against a warm beige background,
A travel skincare set laid out on a light neutral surface, including a white pouch, a white card holder with embossed branding, a dual-sachet mask packet labeled Purifying Mud Mask,
Two skincare mask packets are displayed side by side on a marble slab with styled ingredients behind them.
A single flat skincare packet shown on a plain white background, with printed text describing CaliforniaBiology Hyaluronic Acid + Niacinamide Serum and Bentonite
A dual-step skincare duo sachet set on a white background, featuring a greenish-gray mud mask swipe on the left and a white serum on the right

TWO STEPS. ONE RITUAL.

Purify first. Hydrate second.

STEP 1

PURIFY

BENTONITE + KAOLIN
CLAY MASK

ALOE + HONEY

Helps absorb excess oil and lift away impurities for a fresh, deeply cleansed feel.

STEP 2

HYDRATE

HYALURONIC ACID +
NIACINAMIDE SERUM

HYA + NIA

Helps replenish hydration after masking, leaving skin feeling soft, smooth and refreshed.

Cleanses deeply CLEANSES
DEEPLY
Absorbs excess oil ABSORBS
EXCESS OIL
Refreshes skin REFRESHES
SKIN
Hydrates skin HYDRATES
SKIN
Smooths texture SMOOTHS
TEXTURE
Supports skin barrier SUPPORTS
SKIN BARRIER

TWO STEPS.
ONE RITUAL.

Purify first. Hydrate second.

STEP 1

PURIFY

BENTONITE + KAOLIN
CLAY MASK

ALOE + HONEY

Helps absorb excess oil and lift away impurities for a fresh, deeply cleansed feel.

Cleanses deeply CLEANSES
DEEPLY
Absorbs excess oil ABSORBS
EXCESS OIL
Refreshes skin REFRESHES
SKIN
STEP 2

HYDRATE

HYALURONIC ACID +
NIACINAMIDE SERUM

HYA + NIA

Helps replenish hydration after masking, leaving skin feeling soft, smooth and refreshed.

Hydrates skin HYDRATES
SKIN
Smooths texture SMOOTHS
TEXTURE
Supports skin barrier SUPPORTS
SKIN BARRIER

How to Use

  • A close-up of a woman with a light gray-green clay face mask being applied to her cheek, set against a soft beige background.

    Apply

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

  • A close-up of a woman with a clay face mask being rinsed with water, her hands gently washing her face against a neutral light gray background.

    Rinse

    Rinse thoroughly with warm water and pat dry.

  • A close-up of a woman with glossy, radiant skin touching her cheek, showcasing a high-shine complexion against a soft beige background.

    Apply Serum

    Apply HYA + NIA to clean, dry skin and let it absorb. Then enjoy the glow.
STEP 1

PURIFY

BENTONITE + KAOLIN CLAY MASK

ALOE + HONEY

A mineral-rich clay mask that helps absorb excess oil and lift away impurities, leaving skin feeling fresh and deeply cleansed.

Cleanses deeply CLEANSES
DEEPLY
Absorbs excess oil ABSORBS
EXCESS OIL
Refreshes skin REFRESHES
SKIN
California Biology Purifying Duo Sachet with clay texture
STEP 1

PURIFY

BENTONITE + KAOLIN CLAY MASK

ALOE + HONEY

A mineral-rich clay mask that helps absorb excess oil and lift away impurities, leaving skin feeling fresh and deeply cleansed.

Cleanses deeply CLEANSES
DEEPLY
Absorbs excess oil ABSORBS
EXCESS OIL
Refreshes skin REFRESHES
SKIN
STEP 2

HYDRATE

HYALURONIC ACID + NIACINAMIDE SERUM

HYA + NIA

A lightweight serum that helps replenish hydration after masking, leaving skin feeling soft, smooth and refreshed.

Hydrates skin HYDRATES
SKIN
Smooths texture SMOOTHS
TEXTURE
Supports skin barrier SUPPORTS
SKIN BARRIER
California Biology Hydrate Step 2 Duo Sachet with serum texture
STEP 2

HYDRATE

HYALURONIC ACID + NIACINAMIDE SERUM

HYA + NIA

A lightweight serum that helps replenish hydration after masking, leaving skin feeling soft, smooth and refreshed.

Hydrates skin HYDRATES
SKIN
Smooths texture SMOOTHS
TEXTURE
Supports skin barrier SUPPORTS
SKIN BARRIER

Purposeful Ingredients

STEP 01 — PURIFY
STEP 02 — HYDRATE
Two small piles of loose powder, one muted olive green and one light beige, arranged on a warm beige surface with soft leaf shadows.

BENTONITE + KAOLIN CLAY

Mineral clays at the heart of the purifying first step.

Aloe vera leaves and slices beside a honeycomb piece with honey pooling underneath and a wooden honey dipper, set on a light stone surface with soft shadows.

ALOE + HONEY

Paired with the clay mask to support hydrated, smoother-looking skin.

A clear glass dropper dispensing transparent liquid onto a smooth light blue surface, with several droplets and a blurred molecular model in the background.

HYALURONIC ACID

Helps skin retain moisture so that it can stay hydrated, flexible, and supple.

A close-up, top-down view of several clear glass petri dishes arranged on a glossy, light blue-white surface.

NIACINAMIDE

Vitamin B3 that helps refine texture, support the skin barrier, and promote a smoother, more balanced complexion.

STEP 01 — PURIFY

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 — HYDRATE

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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