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
- LLauraReviewingSIREN SILK Bio-Retinol Hydration CreamRated 3 out of 5 stars5 days ago3 Stars
I have been using the products for a luttle over 2 weeks now , so i cant really make an honest review on the benefit i have notifed by usung it . Unfortunately, I recieved a damaged package . I was able to salvage some of the cream , but one of the containers did open , i dont know if it was heat related , or if it’s because there is jo seal on them , but it did arrive a bit messy . Ill keep using what i salvaged, to see if the product will benefit my skin type 😊👍🏼
- KPKarin P.Verified BuyerReviewingSIREN SILK Bio-Retinol Hydration CreamI recommend this productAge Range 45-54Skin Type Combination, Acne-ProneSkin Concerns Acne, Anti-Aging, Pores, DullnessRated 5 out of 5 stars1 week agoSilky cream
Best moisturizer for my aging, acne prone skin.I used Mermaid milk at AM and Siren silk at PM, but realized I need thicker moisturizer in the morning too.
- SJSamantha J.Verified BuyerReviewingSIREN SILK Bio-Retinol Hydration CreamI recommend this productAge Range 25-34Skin Type Acne-Prone, SensitiveSkin Concerns Redness, Acne, Dullness, SensitivityRated 5 out of 5 stars3 weeks agoCan't go without!
This is an amazing hydrating cream that does not cause me to break out! I use it as my night cream and always wake up with such soft, hydrated skin. It's truly the best! In the summer months I use the mermaid milk for day and siren silk at night. In the winter I use siren silk more both day and night. I can definitely tell the difference with my complexion with this. 10/10
- ARAlison R.Verified ReviewerReviewingSIREN SILK Bio-Retinol Hydration CreamI recommend this productAge Range 35-44Skin Type Combination, MatureSkin Concerns Anti-Aging, Redness, Oiliness, Pores, DullnessRated 5 out of 5 stars4 weeks agoBeauty Box find!
I received this in my subscription box and absolutely love it! Leave my skin feeling soft and hydrated. I can’t wait to try other products from Earth Harbor. I will be purchasing a few from my skin quiz!
- MLMelissa L.Verified BuyerReviewingSIREN SILK Bio-Retinol Hydration Cream - RefillI recommend this productRated 5 out of 5 stars1 month agoMy longest running skincare staple!
This is probably the 15th jar of siren silk that I've purchased. It's the most stable part of my routine, the one I never wonder whether I should tinker with. I tried mermaid milk years ago, and although I thought it would be preferable for my skin (mostly oily and prone to clogged pores and the occasional pimple), it seems I needed more moisture than I thought! I use Siren Silk every night, and now sometimes on dry winter mornings as well. I wake up with nourished and plump-looking skin. I used to fight my oily skin at every turn (two washes every day, only light, non-greasy moisturizer), but this has helped me recognize the importance of staying moisturized to keep my skin more balanced. I came for the scent on this one and stayed for the results <3