Rich Cream — Hydrates — Softens — Revives
SIREN SILK Bio-Retinol Hydration Cream - Refill
A 4-in-1 treatment cream that hydrates, smooths texture, revives skin, and softens the look of fine lines—delivering a gentle, dewy symphony for your skin, perfect for day and night.
Our refills are the same Earth Harbor gems, sealed with aluminum tops and completely plastic-free! While many brands use pouches for refills, our glass bottles with aluminum tops have a lower ecological footprint based on sustainability-focused research. Both materials are widely and easily recycled, making refilling truly waste-free!
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
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 - Refill
FAQs
- KBKaren B.Verified BuyerReviewingSIREN SILK Bio-Retinol Hydration CreamI recommend this productAge Range 55-64Skin Type Combination, MatureSkin Concerns Dark Spots, Sensitivity, Pores, Anti-Aging, DullnessRated 5 out of 5 stars3 minutes agoFantastic Face Cream!
I love how quickly Siren Silk absorbs into my skin! It doesn't feel heavy, but makes my skin feel super hydrated!
- ASAnna-Lena S.Verified BuyerReviewingSIREN SILK Bio-Retinol Hydration CreamI recommend this productAge Range 35-44Skin Type SensitiveSkin Concerns Anti-Aging, Pores, SensitivityRated 5 out of 5 stars4 days agoSilky dream
I love using Siren Silk as a night cream or during the day in the winter months. This is heavier than Mermaid Milk (holy-grail daytime cream or summer daytime/nighttime cream), but it's still not greasy or heavy. It does leave a matte finish, which I adore. I can slather this on and go out the door without needing to powder, as my skin soaks it up. It works well to fight fine lines and gives my skin an even, smooth appearance. My skin is rosacea-prone, very sensitive, and prone to breakouts, but with Earth Harbor, it has remained calm and clear. This cream has not caused any breakouts or issues with sensitivities. It smells like creamy oranges and is very soothing.
- MEMichelle E.Verified BuyerReviewingSIREN SILK Bio-Retinol Hydration CreamI recommend this productAge Range 45-54Skin Type Combination, Acne-Prone, MatureSkin Concerns Acne, Anti-Aging, Redness, Sensitivity, Dark SpotsRated 5 out of 5 stars3 weeks agoSilky smooth for everyday
One of my top sustainable gift ideas…
My personal favourites from Earth Harbor are the Azure Neck Cream, it’s loaded full of skin firming Peptides.And Siren Silk Moisturizer is the most amazing smelling nourishing cream ever. earth harbor Siren Silk multi-tasking hydration creme with Sea Retinol + Super herbs. A silky nourishing creme without greasiness. Lovely mild herbal aroma . Leaves my skin feeling plump & energized.
The perfect eco-friendly gift for, Ocean-minded, skincare lovers. Barrier supporting ingredients: Tocopherol, Panthenol, Aloe, as well as sea retinol for brightening & anti-aging .
- ATAnna T.Verified BuyerReviewingSIREN SILK Bio-Retinol Hydration CreamI recommend this productAge Range 25-34Skin Type DrySkin Concerns Dryness, Redness, Anti-AgingRated 5 out of 5 stars3 weeks agoThick cream
This feels great, thick and hydrating, a little goes a long way. A very subtle pleasant scent, not really scented.
- LLorenaReviewingSIREN SILK Bio-Retinol Hydration CreamI recommend this productRated 5 out of 5 stars1 month ago5 Stars
I think i will like it