LUNA RAIN 15-Acid Resurfacing Serum - Refill - Earth Harbor Naturals

Exfoliating Treatment — Gentle — AHA/BHA — Evens — Illuminates

LUNA RAIN 15-Acid Resurfacing Serum - Refill

Name: LUNA RAIN 15-Acid Resurfacing Serum - Refill
Brand: Earth Harbor Naturals
SKU: LUNAREFIL102
Price: 35.15 USD
Availability: InStock

$35.15~~$37.00~~

4.8

Rated 4.8 out of 5 stars

301 Reviews

Milky raindrops of moonlit magic, this serum gently refines and retexturizes your skin, revealing a smoother, more radiant complexion overnight.

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 $50+

✓ Easy free 30-day returns

Recommended for:
All skin types. Especially sensitive, dull, uneven, and textured skin.

Helps with:

• Uneven Texture
• Hyperpigmentation
• Pores
• Fine Lines
• Dullness
• Skin Clarity

Scent: Fresh, citrusy and clean
Texture:Lightweight, milky water-based serum
Color: Creamy white

1 oz | 30 mL glass bottle with aluminum top

Apply to clean skin before moisturizer. Gentle enough for daily use.

1x daily PM

Skincare application guide

11% Superfruit Acid Complex · Gently exfoliates + smooths
2% Botanical BHA Complex · Helps brighten + improves skin tone
Seaweed Collagen · Supports skin renewal + elasticity
Marshmallow Root · Hydrates + soothes
Rosehip · Vitamin A-rich + replenishes skin

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

Luna Rain uses a powerful yet gentle 13% blend of 15 fruit and bark acids, including Glycolic, Lactic, and Salicylic acids, to exfoliate the skin. These natural acids work together to gently remove dead skin cells, promoting smoother texture, refined pores, and a more even skin tone, while still being kind to the skin. Additionally, marshmallow root, seaweed collagen, and other botanical actives provide soothing hydration, ensuring your skin stays calm and nourished throughout the resurfacing process.
Yes! Luna Rain is gentle enough for all skin types, including sensitive and acne-prone skin. The 13% blend of fruit and bark acids, along with marshmallow root, seaweed collagen, and other botanical actives, offers soothing hydration and effective exfoliation, making it perfect even for dry, oily, combination, blemish-prone, or sensitive skin.
Luna Rain stands out because it combines a potent 13% blend of 15 gentle acids, including glycolic, lactic, and salicylic acids, with soothing marshmallow root and seaweed collagen. Unlike many exfoliating serums that rely on synthetic exfoliators, Luna Rain uses natural fruit and bark acids that are more biocompatible with your skin barrier. Plus, other natural exfoliators often don't use a diverse enough range of acids, which is where Luna Rain excels, offering a comprehensive exfoliation while also addressing fine lines, irritation, and hydration—all in a gentle, milky, non-drying formula.
After cleansing and toning, apply a thin layer of Luna Rain to your face, avoiding the eye area. Since Luna Rain is a night treatment, it's best used in your evening skincare routine. For maximum results, if you're layering with other Earth Harbor serums, we suggest using Luna Rain as your first treatment to allow the acids to work effectively. Follow with your favorite moisturizer to lock in hydration and nourish your skin overnight. For daytime use, always apply sunscreen, as exfoliation can make your skin more sensitive to the sun. If you’re new to acid treatments, start by using Luna Rain 2-3 times a week and gradually increase usage as your skin adjusts.

Luna Rain gently exfoliates with a potent 13% blend of 15 acids, while soothing with marshmallow root, seaweed collagen, and other botanical actives. These ingredients work together to calm the skin, support hydration, and improve elasticity, helping to reduce the appearance of fine lines and wrinkles. The plant-based acids gently resurface the skin, while the nourishing actives promote a smoother, more youthful complexion.
Many users notice smoother, more radiant skin after just one use. With continued use, you’ll see a more even texture, reduced fine lines, a reduction in hyperpigmentation, more skin clarity, and enhanced glow thanks to Luna Rain’s exfoliating and nourishing ingredients.
Luna Rain is gentle enough for use every night, but for best results, we recommend starting with 2-3 times a week and increasing frequency as your skin builds tolerance. Its gentle yet powerful blend of acids and actives works to improve skin texture and radiance without causing irritation.
Yes! Luna Rain pairs well with most active ingredients like Vitamin C, peptides, and retinol alternatives. It can also be used with any Earth Harbor products, as our formulations are designed to complement each other. If using products outside of our line, avoid pairing Luna Rain with traditional retinol or other exfoliating treatments, as they may cause irritation when combined with the AHA/BHA blend. Always wear sunscreen during the day to protect your skin after exfoliating.

Real Results

Recyclable Packaging

Refill Options

Clean Ingredients

4.8

Rated 4.8 out of 5 stars

Based on 301 reviews

Total 5 star reviews: 268

Total 4 star reviews: 22

Total 3 star reviews: 4

Total 2 star reviews: 2

Total 1 star reviews: 5

96%would recommend these products

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301 reviews

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BA
Brooklyn A.
Verified Buyer
Reviewing
LUNA RAIN 15-Acid Resurfacing Serum
I recommend this product
Age Range 25-34
Skin Type Combination
Skin Concerns Anti-Aging, Dullness, Dryness, Pores, Dark Spots
Rated 5 out of 5 stars
4 minutes ago
Amazing
I love this stuff! It makes my skin so soft and it helps reduce the appearance of the fine lines I have around my mouth aka smile lines. I love the new formula as well! I plan on using this indefinitely.
Was this helpful?
RH
Renee H.
Verified Buyer
Reviewing
LUNA RAIN 15-Acid Resurfacing Serum
I recommend this product
Age Range 55-64
Skin Type Mature
Skin Concerns Dryness, Dullness, Anti-Aging
Rated 5 out of 5 stars
1 month ago
Luna Rain
This is exactly what my 63 yr. old skin was looking for! This first night I used it, I woke up the next morning and noticed that my skin's texture felt different right away. This product is definitely a keeper!
Was this helpful?
JC
Janna C.
Verified Buyer
Reviewing
LUNA RAIN 15-Acid Resurfacing Serum
I recommend this product
Age Range 35-44
Skin Type Combination
Skin Concerns Dark Spots, Pores, Sensitivity, Dryness, Redness
Rated 5 out of 5 stars
1 month ago
Doesn't irritate my skin
I use this every night and so far, it hasn't caused any redness or irritation.
Was this helpful?
JB
Jana B.
Verified Buyer
Reviewing
LUNA RAIN 15-Acid Resurfacing Serum - Refill
I recommend this product
Rated 5 out of 5 stars
1 month ago
Skin feels nice
This makes my skin feel so soft and smooth. It gives my face moisture without making my skin feel oily. My skin is so much calmer after using the suggested products.
Was this helpful?
AK
Amberly K.
Verified Buyer
Reviewing
LUNA RAIN 15-Acid Resurfacing Serum - Refill
I recommend this product
Rated 5 out of 5 stars
2 months ago
Obsessed
I adore this serum! My skin is so clear and smooth. I’ve been blown away at how much of a difference this has made
Was this helpful?

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LUNA RAIN 15-Acid Resurfacing Serum - Refill

Cleanest Ingredients

Artisan Crafted

1% Donated

Ethical Pioneers

LUNA RAIN 15-Acid Resurfacing Serum - Refill

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