CELESTINE Hydra-Peptide Firming Serum - Refill - Earth Harbor Naturals

Firming Treatment — Plumps — Sculpts glow — Hydrates

CELESTINE Hydra-Peptide Firming Serum - Refill

Name: CELESTINE Hydra-Peptide Firming Serum - Refill
Brand: Earth Harbor Naturals
SKU: CELESREFIL102
Price: 24.7 USD
Availability: InStock

$24.70~~$26.00~~

4.8

Rated 4.8 out of 5 stars

437 Reviews

Float into youthful hydration with this juicy, cloud-like serum—packed with bio-peptides and ultra-hydrators to smooth, plump, and refresh for an instant goddess glow-up.

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!

✓ Free US shipping $40+

✓ Easy free 30-day returns

Recommended for:
All skin types. From dry to oily to mature.

Helps with:

• Firming & Plumping
• Fine Lines & Elasticity
• Hydration & Smoothing
• Youthful Glow

Scent: Fresh, herbaceous
Texture: Lightweight, bouncy, water-based serum
Color: Pale blue-silver (from blue yarrow)

20 mL glass bottle with aluminum top

Variation of harvests for organic wildcrafted Blue Yarrow may create slight color and scent differences from batch to batch, as well as cause Celestine's color to fade over time. This in no way affects the efficacy of the product.

Apply to clean skin before moisturizer.

2x Daily AM PM

Customize: Make an ultra-hydrating skin smoothie by adding a few drops of Celestine Serum to any Earth Harbor moisturizer and concentrate. Saves you time with 1 step instead of 3!

Skincare application guide

5 Bio-Peptides · smoothes skin + supports firmness
20 Plant Hydrators · boosts moisture + enhances suppleness
Seaweed Collagen · supports elasticity + smoothes texture
Hyaluronic Acid & Tremella Mushroom · hydrates deeply + refines look
Niacinamide & Blue Yarrow · brightens tone + balances complexion

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

Cleanest Ingredients

100% nature-identical

Artisan Crafted

in-house lab small batches

1% Donated

to ocean conservation

Ethical Pioneers

built on passion and purpose

This serum combines the best of both worlds by blending polypeptides and hyaluronic acid, along with a whopping 20 ultra-hydrators, seaweed collagen, niacinamide, and other active ingredients, to provide a powerful, multi-benefit treatment. Unlike typical hydrating or peptide serums, it not only locks in moisture but also visibly smooths, plumps, and refreshes your skin. It gives an instant glow while working over time to promote a youthful, rejuvenated look. Its lightweight, non-sticky formula absorbs quickly without any heaviness, delivering long-lasting hydration, firming, and radiance for your healthiest, glowing skin.
Absolutely! The combination of peptides, ultra-hydrators, and niacinamide makes this serum a powerhouse for preventing dryness and dehydration. It helps lock in moisture, leaving your skin feeling hydrated and plump without any greasy residue. Plus, it helps smooth the appearance of fine lines and wrinkles, promoting a more youthful, rejuvenated complexion over time.
Apply after cleansing and toning. Use it alone for an instant hydration boost, or layer it under a moisturizer for deeper hydration and smoother skin. It’s great for both morning and night, or you can even mix a few drops with your moisturizer for added benefits.
This serum works beautifully with your favorite Earth Harbor moisturizer or a nourishing facial oil like Calypso for added hydration and smoothness. For a complete routine, layer it with a calming toner or essence like Tidal Rose Mist or Cloudburst Essence for an extra boost of hydration and balance. It also pairs well with our other serums and concentrates that focus on rejuvenation and radiance, like Marina Brightening Concentrate and Anchor Bio-Retinol Serum.

Yes! This lightweight, non-greasy formula is ideal for all skin types, including dry, oily, combination, and sensitive skin. It deeply hydrates without causing breakouts or clogging pores.
Yes! This serum absorbs quickly, leaving a smooth, hydrated finish that works great as a primer under makeup. It helps create a fresh, glowing base for foundation or BB cream.
While results can vary depending on your skin type and routine, many people notice immediate hydration and smoother skin after the first application. With continued use, you can expect to see firmer, plumper skin, and a more radiant, even tone over time.
While this serum provides intense hydration and smoothness, we recommend following up with a moisturizer for long-lasting hydration, especially if you have dry skin or live in a dry climate. However, for those with oily or combination skin, this serum can be enough on its own, but we still recommend one of our very lightweight moisturizers like Treasure Glazing Milk or Cloudburst Essence.

Real Results

Recyclable Packaging

Refill Options

Clean Ingredients

4.8

Rated 4.8 out of 5 stars

Based on 437 reviews

Total 5 star reviews: 381 Total 4 star reviews: 34 Total 3 star reviews: 11 Total 2 star reviews: 6 Total 1 star reviews: 5

95%would recommend these products

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437 reviews

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L
Laura
Reviewing
CELESTINE Hydra-Peptide Firming Serum
I recommend this product
Rated 5 out of 5 stars
1 week ago
5 Stars
My husband (!) has been
Addicted to this product for many years. We had been purchasing it from a local shop, but they are no longer carrying it so here we are.
Was this helpful?
LS
Liz S.
Verified Buyer
Reviewing
CELESTINE Hydra-Peptide Firming Serum
Age Range 25-34
Skin Type Combination
Skin Concerns Oiliness, Dryness, Anti-Aging
Rated 3 out of 5 stars
3 weeks ago
Works Well, But Has a Strong Scent
I’ve been using the serum for a few weeks now, and have seen an improvement in my skin’s firmness and elasticity. While the product itself goes on smoothly, I don’t like the fragrance. It has a very ocean-y smell, which is assumedly because it contains seaweed and aloe.
Was this helpful?
EH
Earth Harbor Naturals
2 weeks ago
Ahoy Liz! Thanks so much for the feedback! Sorry to hear you didn't love the Celestine fragrance! We want you to be 100% happy with your Earth Harbor gems, so please reach out to hello@earthharbor.com so that we can take perfect care of you. We always want you to experience oceans of happiness!
JA
Jennifer A.
Verified Buyer
Reviewing
CELESTINE Hydra-Peptide Firming Serum
I recommend this product
Age Range 65+
Skin Type Normal
Skin Concerns Anti-Aging
Rated 5 out of 5 stars
3 weeks ago
easy every day step
Light, easy to add to the morning routine
Was this helpful?
TJ
Trish J.
Verified Reviewer
Reviewing
CELESTINE Hydra-Peptide Firming Serum
I recommend this product
Age Range 55-64
Skin Type Mature
Skin Concerns Dullness, Anti-Aging
Rated 5 out of 5 stars
1 month ago
Perfect for mature skin
Yuka rating is excellent. I've used this for 2 weeks on my mature 63 year old female black skin. I've used Cleu de Peau and Estee Lauder, Peter Roth, Obaji and the so called medical grade products from the med spas. I'm done with all those product lines. I still use some Korean products, and am finishing those up. This is amazing product. Happy 2026
Was this helpful?
A
Amy
Reviewing
CELESTINE Hydra-Peptide Firming Serum
I recommend this product
Rated 5 out of 5 stars
1 month ago
5 Stars
Wonderful for the skin.
Was this helpful?

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CELESTINE Hydra-Peptide Firming Serum - Refill

Cleanest Ingredients

Artisan Crafted

1% Donated

Ethical Pioneers

CELESTINE Hydra-Peptide Firming Serum - Refill

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