STH Horse Oil & Charcoal Body Soap

STH Horse Oil & Charcoal Body Soap

Efficacy100/100IrritancyMedium

Works for

Cleansing
Cocamide dea, Lauric acid + 4 more
Cleanses gently
What the product description says
“Brand from Japan STH. Non-silicone type body soap that is gentle to the skin!”
Source: Yesstyle

This product works by removing dirt and oil from the surface of the skin. It uses a combination of mild cleansing agents (cocamide dea, cocamidopropyl betaine, glycol distearate, lauric acid, myristic acid, palmitic acid) 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.

Even though this formulation is mild, the following cleansing agents could trigger an irritation or allergy for some people: cocamidopropyl betaine

Cocamide deaEffect: High~6.1–9.2%
Lauric acidEffect: HighHelps water and oil mix together. Has anti-bacterial properties that might be helpful in preventing blemishes~4–6%
Cocamidopropyl betaineEffect: HighHelps water and oil mix together. Used as a cleansing ingredient. Could be an allergen~3.9–5.9%
Palmitic acidEffect: HighAn emollient that is naturally present in skin and helps soften it~1.7–2.6%
Myristic acidEffect: HighHelps oil and water mix together. Could be comedogenic~1.4–2%
Glycol distearateEffect: HighHelps water and oil mix together~0.55–1.35%

Can it cause trouble?

Irritancy
2 strong irritants: Alcohol denat., Parfum
Medium risk
We flagged 9 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Cocamidopropyl betaineHelps water and oil mix together. Used as a cleansing ingredient. Could be an allergenHigh~3.9–5.9%est.
Propylene glycolHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritatingHigh~1.1–1.7%est.
Alcohol denat.Produces temporary toning effect. Can help dissolve other ingredients or preserve productsHigh~0.2–0.75%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.05–0.15%est.
Lauric acidHelps water and oil mix together. Has anti-bacterial properties that might be helpful in preventing blemishesMedium~4–6%est.
Potassium hydroxideUsed to adjust the pH level of productsMedium~2.1–3.1%est.
Myristic acidHelps oil and water mix together. Could be comedogenicMedium~1.4–2%est.
Glycol distearateHelps water and oil mix togetherMedium~0.55–1.35%est.
EdtaHelp to stabilize the product formulationMedium~0.15–0.55%est.
Comedogenic
2 ingredients rated 2 or more on the 0–5 pore-clogging scale
2 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
Lauric acidHelps water and oil mix together. Has anti-bacterial properties that might be helpful in preventing blemishes3/5~4–6%est.
Myristic acidHelps oil and water mix together. Could be comedogenic3/5~1.4–2%est.

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Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Cocamide dea~6.1–9.2%
Formula
Irritation risk
Low
Works for
Cleansing
More about Cocamide dea
Lauric acid~4–6%
Comedogenic 3/5Irritant · medium
Irritation risk
Medium
Comedogenicity
3/5
Works for
CleansingAnti-blemishAntibacterial

Helps water and oil mix together. Has anti-bacterial properties that might be helpful in preventing blemishes

More about Lauric acid
Cocamidopropyl betaine~3.9–5.9%
Irritant · high
Irritation risk
High
Works for
Cleansing

Helps water and oil mix together. Used as a cleansing ingredient. Could be an allergen

More about Cocamidopropyl betaine
Potassium hydroxide~2.1–3.1%
Irritant · medium
Irritation risk
Medium

Used to adjust the pH level of products

More about Potassium hydroxide
Palmitic acid~1.7–2.6%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

An emollient that is naturally present in skin and helps soften it

More about Palmitic acid
Myristic acid~1.4–2%
Comedogenic 3/5Irritant · medium
Irritation risk
Medium
Comedogenicity
3/5
Works for
Cleansing

Helps oil and water mix together. Could be comedogenic

More about Myristic acid
Propylene glycol~1.1–1.7%
Irritant · high
Irritation risk
High
Works for
Moisturizing

Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating

More about Propylene glycol
Glycerin~1.1–1.6%
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 oxide~0.6–1.4%
Formula
Irritation risk
Low
More about Sodium oxide
Glycol distearate~0.55–1.35%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps water and oil mix together

More about Glycol distearate
Horse oil
Not recognized
Charcoal~0.6–1.35%
Formula
Irritation risk
Low
More about Charcoal
Alcohol denat.~0.2–0.75%
Irritant · high
Irritation risk
High

Produces temporary toning effect. Can help dissolve other ingredients or preserve products

More about Alcohol denat.
Edta~0.15–0.55%
Irritant · medium
Irritation risk
Medium

Help to stabilize the product formulation

More about Edta
Methylparaben~0.05–0.3%
Formula
Irritation risk
Low

A preservative

More about Methylparaben
Ethylparaben~0.05–0.25%
Formula
Irritation risk
Low

A preservative

More about Ethylparaben
Parfum~0.05–0.15%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Ingredient list view

Water, Cocamide dea, Lauric acid, Cocamidopropyl betaine, Potassium hydroxide, Palmitic acid, Myristic acid, Propylene glycol, Glycerin, Sodium oxide, Glycol distearate, Unknown, Charcoal, Alcohol denat., Edta, Methylparaben, Ethylparaben, Parfum

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Yesstyle
$45.10
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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
STHHorse Oil & Charcoal Body SoapYOUR PRODUCTCosme StationHorse Oil Body Soap - 4 TypesNaturiumThe Multi-Peptide Advanced Body WashSQUEEZEHorse Oil Body Soap
Match—42%37%35%
Price$45.10—$13.23−$31.87$26.70−$18.40
Shared key ingredients—5 of 75 of 74 of 7
Key difference—Sodium Laureth SulfateFerulic AcidHydrolyzed Collagen
Irritancy Medium Medium Low Medium
Drying alcohol Contains drying alcohol Contains drying alcohol ——
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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 5 studies and safety reviews.

  1. 1
  2. 2
  3. 3
    Propylene Glycolpubmed.ncbi.nlm.nih.gov
  4. 4
  5. 5
STH Horse Oil & Charcoal Body Soap
STHHorse Oil & Charcoal Body Soap

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