SIREN SILK Bio-Retinol Hydration Cream - Earth Harbor Naturals

Rich Cream — Hydrates — Softens — Revives

SIREN SILK Bio-Retinol Hydration Cream

Name: SIREN SILK Bio-Retinol Hydration Cream
Brand: Earth Harbor Naturals
SKU: SILK102
Price: 46.0 USD
Availability: InStock

$46.00

4.8

Rated 4.8 out of 5 stars

589 Reviews

Your nightly dose of deep hydration and gentle renewal. This 4-in-1 bio-retinol cream nourishes, smooths, and revives skin overnight—softening fine lines and restoring a dewy glow by morning. Calm, cushiony, and perfect as your go-to night moisturizer.

✓ Free US shipping $50+

✓ Easy free 30-day returns

Recommended for:
All skin types. Great for dry, sensitive, and mature skin.

Helps with:

• Intense Hydration
• Skin Plumping
• Fine Lines & Wrinkles
• Calming Redness
• Glowy Complexion

Scent: Subtly fruity, nutty, and herbal
Texture: Rich cream
Color: Yellow-white

2oz | 60 ml glass jar

Massage into clean skin as a night cream.

1x Daily PM

Customize: Mix with any Earth Harbor concentrate for added hyper-targeted skin benefits! At night, we especially recommend mixing her with a few drops of Calypso Antioxidant Glow Facial Oil for extra nourishment and hydration.

Skincare application guide

• Triple Plant Retinol · retinol alternative + mermaid glow
• Colloidal Oatmeal · nourishes + soothes
• Superherbs · improve tone + revive
• Provitamin B5 & Vitamin E · hydrate + support barrier
• Plant Butter Omegas · replenish + soften
• Antioxidant Complex · boosts resilience + radiance

Our Commitment to Quality

100% Nature-Identical
No Harsh Synthetics
No Fillers, Only Actives
Clinically & Scientifically Proven
Dermatologist Tested
Certified Safe for Sensitive Skin
Non-Toxic (Toxicologist Audited)
Third-Party Safety & Stability Tested

Clean & Ethical Practices

Ultra-Clean Ingredients
Free from Artificial Fragrances & Dyes
Traceable, Ethical, Premium Ingredients
Non-GMO Verified Ingredients
Sustainably Sourced & Verified
Cruelty-Free & Vegan Certified
European Union Certified

Sustainability at Heart

Plastic Neutral Certified
Carbon Neutral Certified
Zero-Waste Refills
Ocean-Friendly
1% for the Planet Member
Reusable & Biodegradable Packaging

Crafted with Care

Artisan Small Batches
In-House Lab Made
Herbalist-Chemist Formulated
Good Manufacturing Practices Certified

Proudly Independent

Small Family Business
Woman-Owned
Independently Operated, Never Outsourced

Packaging
Our glass containers are 100% recyclable, and closures use 50% PCR plastic (varies by availability). Boxes, inserts, and shipping materials are compostable, made with FSC-certified/recycled paper and soy-based ink. Every product also has a plastic-free option and zero-waste refills.

How to recycle
For a zero-waste choice, get a refill. Each comes in a glass bottle with an aluminum lid. Swap your old closure onto the new bottle, then recycle the empty glass and lid! If not refilling, wash, remove the label, and recycle the glass. Take apart closures and check local recycling guidelines—small pieces (like closure elements and label backing) can be recycled through PACT Collective or be discarded. All boxes and shipping materials can be composted, reused, or recycled.

Plastic Free & Refill Option

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Clinically Tested

Toxicologist Audited

Dermatologist Tested

Sensitive Skin Safe

Smiling woman holding an Earth Harbor
Siren Silk jar with a dab of white face
cream on her cheek.

Earth Harbor Siren Silk jar on rippling
green water next to a pink lily flower and
white seashell.

SIREN SILK at-a-glance

WHAT IT IS
Rich Night Cream · Retinol Alternative Benefits · Deeply Hydrates

WHY YOU’LL LOVE IT
Healthy Aging · Soothes & Softens · 20 Botanical Actives · Dewy Finish

MADE FOR
All skin types. Great for dry, sensitive, and mature skin.

HELPS WITH
Intense Hydration · Skin Plumping · Fine Lines & Wrinkles · Calming Redness · Glowy Complexion

FYI
Retinol cream results—without the sensitivity. Hydrating, smoothing, and glow-worthy.

Cleanest Ingredients

100% nature-identical

Artisan Crafted

in-house lab small batches

1% Donated

to ocean conservation

Ethical Pioneers

built on passion and purpose

SIREN SILK Bio-Retinol Hydration Cream

Proven natural actives

Triple Plant Retinol • Retinol Alternatives + Blurs Imperfections
Colloidal Oatmeal •Deeply Nourishes + Soothes Sensitivity
Superherbs • Support Even Tone + Revitalize Skin
Provitamin B5 & Vitamin E • Hydration + Strengthen Barrier
Plant Butter Omegas • Replenish + Restore Resilience
Antioxidant Complex • Defend Against Stressors + Mermaid Glow

Minimalist
geometric line-art
icon featuring
overlapping
triangles.

Rejuvenates

Supports youthful, healthy skin

Elegant line-art
icon combining a
shield shape with
a central leaf or
flame motif.

Hydrates

Deeply nourishes for lasting moisture

Minimalist four-
pointed star icon
made of clean,
fine lines.

Revives

Enhances radiance and renewal

Geometric
diamond-shaped
tile icon with
internal concentric
curved lines.

Softens

Leaves skin smooth and supple

Before and after close-up comparison of a
woman's cheek and eye area, highlighting
reduced fine lines.

SIREN SILK Bio-Retinol Hydration Cream

Powerful results

98% • Had smoother, softer skin**
96% • Had improved hydration**
92% • Saw reduced fine lines**
96% • Had more even skin tone**
94% • Noticed firmer skin

* Immediate Results
** After two weeks

I want the lightest possible hydration. → Treasure Barrier Boost Glazing Milk (essence-moisturizer that absorbs instantly)

I love a gel water cream that smooths and refines. → Azure Smooth Water Cream (peptide + stem cell-powered for hydration + firming)

I want a creamy moisturizer that feels weightless. → Mermaid Milk (airy, non-greasy, and loaded with superfoods)

I want a soft glow with deep hydration + healthy aging support. → Siren Silk (bio-retinol cream that deeply hydrates and calms)

I need an ultra-rich, cushiony night cream. → Mermaid Moon (balm-cream fusion for deep hydration + line-filling)

I want the most intense moisture + a balm texture. → Nymph Nectar (superfruit-rich, ultra-nourishing balm)
Siren Silk uses bio-retinol, a plant-based alternative that gives you all the benefits of retinol—smoothing fine lines, boosting elasticity, and brightening—without the irritation, peeling, or sensitivity. It delivers rich, buttery moisture while absorbing beautifully, leaving skin soft, plump, and radiant.
Apply Siren Silk after serums and treatments to lock in hydration at night. If using an essence or toner, apply that first.
Yes. Siren Silk is best used at night, when skin naturally repairs and replenishes. Its richer texture and gentle bio-retinol deeply hydrate, support elasticity, and soften fine lines while you sleep—without irritation.

If used during the day, always follow with SPF, but for most routines, we recommend saving Siren Silk for nighttime and reaching for Mermaid Milk in the morning.

Yes! Siren Silk is made with bio-retinol and calming botanicals to help restore skin without irritation, making it a great choice even for sensitive skin types.
Because Siren Silk is the richest of the three, it’s best used at night—when skin needs deeper hydration and recovery. Its bio-retinol and cushiony moisture support elasticity and a soft glow without irritation. Mermaid Milk is a lightweight, airy cream that hydrates without heaviness, making it great for everyday moisture. Azure, on the other hand, is an oil-free gel water cream that smooths, refines pores, and provides lightweight hydration with a firmer finish. If you want deep moisture and a soft glow, Siren Silk is the way to go!
A dime-sized amount is usually enough, but you can adjust based on your skin’s needs. If layering over an essence or serum, you may need less.
In the morning, layer Treasure underneath for an extra boost of lightweight hydration and a smooth, radiant base. At night, apply Siren Silk over serums for deep hydration, then seal it in with Nymph Nectar for an ultra-rich moisture boost.

Real Results

Recyclable Packaging

Refill Options

Clean Ingredients

4.8

Rated 4.8 out of 5 stars

Based on 589 reviews

Total 5 star reviews: 533 Total 4 star reviews: 33 Total 3 star reviews: 14 Total 2 star reviews: 6 Total 1 star reviews: 3

96%would recommend these products

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V
Vicki
Reviewing
SIREN SILK Bio-Retinol Hydration Cream - Refill
I recommend this product
Rated 5 out of 5 stars
4 minutes ago
5 Stars
I love all of Earth Harbors skin care. It is well researchhed for what it does for your skin. My skin is firmer and fine wrinkles are diminissed.
Was this helpful?
RM
Rebekah M.
Verified Buyer
Reviewing
SIREN SILK Bio-Retinol Hydration Cream - Refill
I recommend this product
Rated 5 out of 5 stars
1 week ago
Love love
My favorite moisturizer! I love that I can get it in the big size without the plastic top. I like to add a few drops of calypso or a blop of nymph nectar for a little extraTLC when needed!
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SW
Sofia W.
Verified Buyer
Reviewing
SIREN SILK Bio-Retinol Hydration Cream
I recommend this product
Age Range 25-34
Skin Type Sensitive
Skin Concerns Dryness
Rated 5 out of 5 stars
1 week ago
love it
Great for my sensitive skin!
Was this helpful?
MO
Michelle O.
Verified Buyer
Reviewing
SIREN SILK Bio-Retinol Hydration Cream
I recommend this product
Age Range 35-44
Skin Type Dry
Skin Concerns Dryness, Pores, Dark Spots
Rated 5 out of 5 stars
1 week ago
My fav night cream
Love this. Silky smooth and not too greasy.
Was this helpful?
NB
Nicolette B.
Verified Buyer
Reviewing
SIREN SILK Bio-Retinol Hydration Cream
I recommend this product
Age Range 25-34
Skin Type Dry
Skin Concerns Dryness, Anti-Aging
Rated 5 out of 5 stars
1 week ago
Lotion
I love the anti—aging abilities and ingredients. Great for post-shower moisturizer
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SIREN SILK Bio-Retinol Hydration Cream

Cleanest Ingredients

Artisan Crafted

1% Donated

Ethical Pioneers

Proven natural actives

Rejuvenates

Hydrates

Revives

Softens

Powerful results

SIREN SILK Bio-Retinol Hydration Cream

FAQs