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Thalgo Marine Algae Cleansing Bar
Thalgo

Thalgo Marine Algae Cleansing Bar

Efficacy100/100IrritancyHigh
See all ingredients

Works for

Cleansing
Sodium palmate, Sodium palm kernelate
Cleanses gently
What the product description says
“Marine Algae Cleansing Bar”
From product name

This product works by removing dirt and oil from the surface of the skin. It uses a combination of mild cleansing agents (sodium palm kernelate, sodium palmate) and should be able to cleanse the skin gently. Still keep in mind that any cleansing can disrupt the skin barrier, and most people do not need to cleanse their skin more than once per day.

Sodium palmateEffect: HighWorks as a cleansing agent. Helps water and oil mix together~25–38%
Sodium palm kernelateEffect: High~8.8–13.2%

Can it cause trouble?

Irritancy
7 strong irritants: Parfum, Calendula officinalis flower extract + 5 more — patch-test recommended
High risk
We flagged 11 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~1–1.5%est.
Calendula officinalis flower extractA plant extract that has some anti-oxidant and anti-bacterial properties. Can be irritatingHigh~0.45–1.1%est.
Benzyl benzoateFragrance with sweet balsamic smell. Help to preserve products and dissolve other ingredients. Could trigger allergic reactions and be irritatingHigh~0.15–0.55%est.
HydroxycitronellalA fragrance. A likely allergen and can be irritatingHigh~0.1–0.45%est.
LinaloolA fragrance. Can be irritatingHigh~0.05–0.3%est.
CitronellolA fragrance. Can be irritatingHigh~0.05–0.2%est.
CoumarinA fragrance. Is a likely skin allergen and can be irritatingHigh~0.05–0.2%est.
Sodium palmateWorks as a cleansing agent. Helps water and oil mix togetherMedium~25–38%est.
Glycine soja oilA good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.Medium~3.5–5.3%est.
Tetrasodium edtaHelps to stabilize the product formulationMedium~0.45–1%est.
Tetrasodium etidronateHelps stabilize the productMedium~0.4–0.9%est.
Comedogenic
4 ingredients rated 2 or more on the 0–5 pore-clogging scale
4 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Fucus vesiculosus powder—3/5~2.5–3.8%est.
Laminaria digitata powder—3/5~2–3.1%est.
Lithothamnion calcareum powder—3/5~0.95–1.4%est.
Glycine soja oilA good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.2/5~3.5–5.3%est.

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Ingredients

Filter by role to see what each ingredient is doing.

Sodium palmate~25–38%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Works as a cleansing agent. Helps water and oil mix together

More about Sodium palmate
Sodium palm kernelate~8.8–13.2%
Formula
Irritation risk
Low
Works for
Cleansing
More about Sodium palm kernelate
Water~4.8–7.2%
Formula
Irritation risk
Low

Plain old water

More about Water
Glycine soja oil~3.5–5.3%
Comedogenic 2/5Irritant · medium
Irritation risk
Medium
Comedogenicity
2/5
Works for
Moisturizing

A good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.

More about Glycine soja oil
Fucus vesiculosus powder~2.5–3.8%
Comedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
More about Fucus vesiculosus powder
Laminaria digitata powder~2–3.1%
Comedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
More about Laminaria digitata powder
Glycerin~1.7–2.5%
Formula
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Sodium chloride~1.3–1.9%
Formula
Irritation risk
Low

Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures

More about Sodium chloride
Parfum~1–1.5%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Lithothamnion calcareum powder~0.95–1.4%
Comedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
More about Lithothamnion calcareum powder
Calendula officinalis flower extract~0.45–1.1%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that has some anti-oxidant and anti-bacterial properties. Can be irritating

More about Calendula officinalis flower extract
Tetrasodium edta~0.45–1%
Irritant · medium
Irritation risk
Medium

Helps to stabilize the product formulation

More about Tetrasodium edta
Tetrasodium etidronate~0.4–0.9%
Irritant · medium
Irritation risk
Medium

Helps stabilize the product

More about Tetrasodium etidronate
Tocopherol~0.3–0.7%
Formula
Irritation risk
Low
Works for
Anti-oxidationMoisturizingAnti-inflammatoryAnti-aging

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

More about Tocopherol
Benzyl benzoate~0.15–0.55%
Irritant · high
Irritation risk
High

Fragrance with sweet balsamic smell. Help to preserve products and dissolve other ingredients. Could trigger allergic reactions and be irritating

More about Benzyl benzoate
Hydroxycitronellal~0.1–0.45%
Irritant · high
Irritation risk
High

A fragrance. A likely allergen and can be irritating

More about Hydroxycitronellal
Linalool~0.05–0.3%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Citronellol~0.05–0.2%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Citronellol
Coumarin~0.05–0.2%
Irritant · high
Irritation risk
High

A fragrance. Is a likely skin allergen and can be irritating

More about Coumarin
Ingredient list view

Sodium palmate, Sodium palm kernelate, Water, Glycine soja oil, Fucus vesiculosus powder, Laminaria digitata powder, Glycerin, Sodium chloride, Parfum, Lithothamnion calcareum powder, Calendula officinalis flower extract, Tetrasodium edta, Tetrasodium etidronate, Tocopherol, Benzyl benzoate, Hydroxycitronellal, Linalool, Citronellol, Coumarin

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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
ThalgoMarine Algae Cleansing BarYOUR PRODUCTGrandpa Soap Co.Thylox SoapNACIFICBlack Head All Kill Black BlockOlayUltra Moisture Bath Bars 2 bars, each
Match—39%37%35%
Price—$6.49$14.10$2.65
Shared key ingredients—4 of 53 of 53 of 5
Key difference—SulfurHyaluronic AcidNiacinamide
Irritancy High Medium Medium Medium
Drying alcohol————
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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 7 studies and safety reviews.

  1. 1
    Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
  2. 2
    Topical application of Calendula officinalis (L.): Formulation and evaluation of hydrophilic cream with antioxidant activitypdfs.semanticscholar.org
  3. 3
    The seamy side of natural medicines: contact sensitization to arnica (Arnica montana L.) and marigold (Calendula officinalis L.)ncbi.nlm.nih.gov
  4. 4
    Final report on the safety assessment of Calendula officinalis extract and Calendula officinalisncbi.nlm.nih.gov
  5. 5
    Contact dermatitis as an adverse reaction to some topically used European herbal medicinal products – part 1: Achillea millefolium–Curcuma longaonlinelibrary.wiley.com
  6. 6
    Vitamin E in dermatologyncbi.nlm.nih.gov
Thalgo Marine Algae Cleansing Bar
ThalgoMarine Algae Cleansing Bar
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Find on Amazon

As an Amazon Associate, WIMJ earns from qualifying purchases.