Samphire Biotic Perfecting Serum

Earth Harbor

Where to buy Possibly in stock

About this product

The Earth Harbor Samphire Biotic Perfecting Serum is a serums, essence, ampoule. Our analysis of its 29 ingredients (18 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to oily / acne-prone, dry, and sensitive skin.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
29
Low-risk
18
Fragrance
Fragrance-free
Origin
United States
Data updated
May 2026

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 4/3
Good for dry skin
Squalane Inulin Caprylic/Capric Triglyceride Lecithin
Caution for dry skin
Xanthan Gum Caprylyl/Capryl Glucoside Lecithin
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Betaine Salicylate
Sensitive Skin 2/2
Good for sensitive skin
Laminaria Saccharina Extract Laminaria Digitata Extract
Caution for sensitive skin
Caprylic/Capric Triglyceride Benzyl Alcohol

Ingredients list

29 total
Lower hazard (1) Higher hazard (5)
All29 Skin Conditioning20 Emulsion Stabilising5 Skin Protecting5 Viscosity Controlling5 Solvent5 Viscosity Decreasing Agent3 Hair Conditioning3 Emollient3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
Betaine Salicylate
(Antimicrobial Agent, Exfoliant, Keratolytic)
1
A
Beta-Glucan
(Bulking Agent, Skin Conditioning)
1
Dimethyl Sulfone
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
Laminaria Digitata Extract
(Skin Protecting)
Lactobacillus/Nereocystis Leutkeana Ferment Filtrate
(Hair Conditioning, Skin Conditioning)
1
Laminaria Saccharina Extract
(Skin Protecting)
1
Crithmum Maritimum Extract
(Skin Conditioning, Tonic)
1
A
Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning)
Musa Paradisiaca Fruit Extract
(Skin Conditioning)
1
A
Inulin
(Humectant, Skin Conditioning)
Cucumis Sativus Extract
(Skin Conditioning)
Citrus Limon Fruit Extract
(Fragrance, Skin Conditioning)
Citrus Aurantium Dulcis Peel Extract
(Binding, Emulsion Stabilising, Perfuming, Skin Conditioning, Viscosity Controlling)
Passiflora Edulis Peel Extract
(Humectant)
Cucumis Melo Phytoplacenta Extract
(Skin Conditioning)
Citrus Junos Callus Extract
(Antioxidant, Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient, Skin Protecting)
Malus Domestica Callus Extract
(Antioxidant, Skin Protecting)
Rubus Idaeus Extract
(Skin Protecting)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
2
3
Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient)
1
A
Sclerotium Gum
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Viscosity Controlling)
1
A
Pullulan
(Binding Agent, Film Forming, Binding)
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
5
A
Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking)
Allergens
Allergens
1
Caprylyl/Capryl Glucoside
(Cleansing, Foaming, Surfactant)
1
A
Dehydroacetic Acid
(Preservative)
1
Melia Azadirachta Extract
(Skin Conditioning)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Antioxidants
Shields skin from free radical damage.
BHA
Unclogs pores and reduces excess oil.

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Barrier RepairStrengthen and restore your skin's natural barrier.
Reduces IrritationEases discomfort and supports skin resilience.
Redness ReducingSoothes visible redness and calms irritation.
Acne FightingFights acne and helps prevent breakouts.
Anti-AgingSoftens lines and helps skin look youthful.
Good For Oily SkinBalances oil and helps reduce shine.
Reduces Large PoresMinimizes the look of enlarged pores.

Concerns

Contains eu allergen

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Betaine Salicylate
Antimicrobial agent, Exfoliant
Low-hazard ingredient.Read moreShow less
EWG 1 Antimicrobial agentExfoliantKeratolytic
Beta-Glucan
Bulking agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Bulking agentSkin conditioning
Dimethyl Sulfone
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Laminaria Digitata Extract
Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 Skin protecting
Lactobacillus/Nereocystis Leutkeana Ferment Filtrate
Hair conditioning, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningSkin conditioning
Laminaria Saccharina Extract
Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 Skin protecting
Crithmum Maritimum Extract
Skin conditioning, Tonic
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningTonic
Squalane
Emollient, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientHair conditioningRefattingSkin conditioning
Musa Paradisiaca Fruit Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Inulin
Humectant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A HumectantSkin conditioning
Cucumis Sativus Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Citrus Limon Fruit Extract
Fragrance, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceSkin conditioning
Citrus Aurantium Dulcis Peel Extract
Binding, Emulsion stabilising
Limited public safety data.Read moreShow less
EWG N/A BindingEmulsion stabilisingPerfumingSkin conditioningViscosity controlling
+ 13 more — see the full ingredients list above
Benzyl Alcohol
External analgesic, Fragrance
Moderate-hazard ingredient.Read moreShow less
EWG 5 CIR A External analgesicFragranceOral health care drugPreservativeSolventViscosity decreasing agentMasking Allergens

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Evening, start slow: Best in the PM a few times a week to begin with; avoid layering with other strong actives the same night.
  • 3 Wear SPF the next day: Acids and retinoids increase sun sensitivity — daily sunscreen is a must while using this.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Pregnancy & breastfeeding

Contains ingredients some choose to avoid or double-check while pregnant or nursing.

Use with caution
BHA (salicylic) (Betaine Salicylate)

Low-strength topical salicylic acid (BHA) is generally considered fine. Caution is usually reserved for high-strength leave-on products and salicylic peels.

This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

BHA (salicylic) 0.5–2%

Salicylic acid is OTC-capped at 2%; 0.5–2% is the usual leave-on range. Much below that it acts more as a soothing agent than an exfoliant.

Betaine Salicylate

INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.

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