What's In My Jar
Hiruscar Post Acne
Hiruscar

Hiruscar Post Acne

Efficacy100/100IrritancyHigh
See all ingredients

Works for

Anti-blemish
Niacinamide, Allantoin
Works well
What the product description says
“Post Acne”
From product name

This product can help reduce breakouts and clogged pores because it contains the following ingredient: niacinamide. This ingredient is used for treating acne and can have a noticeable effect.

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~3.9–5.8%
AllantoinEffect: Low, below effective doseHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.05–0.3%
Evens skin tone
Niacinamide
Works well
What the product description says
“The unique 3-in-1 formulation works simultaneously to improve the appearance of existing acne scars as well as prevent the formation of new permanent scars arising from acne.”
Source: Sentoheal

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: niacinamide

Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.

NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~3.9–5.8%
Anti-aging
Side benefit · Niacinamide
Works well

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains niacinamide.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~3.9–5.8%

Can it cause trouble?

Irritancy
4 strong irritants: Allium cepa bulb extract, Parfum + 2 more — patch-test recommended
High risk
We flagged 6 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Allium cepa bulb extract—High~7–10.4%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.45–1.05%est.
Iodopropynyl butylcarbamateA preservative. Can be irritatingHigh~0.01–0.02%est.
Dmdm hydantoinA preservative that releases formaldehyde and can be irritatingHigh~0.1–0.45%est.
Ppg-26-buteth-26Helps oil and water mix togetherMedium~2–3.1%est.
Peg-40 hydrogenated castor oilHelps oil and water mix togetherMedium~1.5–2.2%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged
Alternatives
The closest match we found
15% Niacinamide Gel Serum
SOBEL SKIN Rx 15% Niacinamide Gel Serum
Closest match96% match
View all alternatives

User reviews

Would you recommend?
No community reviews yet.

Be the first — your take helps the next person decide.

Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Allium cepa bulb extract~7–10.4%
Irritant · high
Irritation risk
High
More about Allium cepa bulb extract
Niacinamide~3.9–5.8%
Hero · Anti-blemish
Irritation risk
Low
Works for
Anti-blemishEvens skin toneMoisturizingAnti-agingReduces irritationReduces rednessAnti-inflammatoryAntibacterial

Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production

More about Niacinamide
Sorbeth-30~2.5–3.7%
Formula
Irritation risk
Low
Works for
Cleansing
More about Sorbeth-30
Ppg-26-buteth-26~2–3.1%
Irritant · medium
Irritation risk
Medium

Helps oil and water mix together

More about Ppg-26-buteth-26
Peg-40 hydrogenated castor oil~1.5–2.2%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Peg-40 hydrogenated castor oil
Quaternium-73~1–1.5%
Formula
Irritation risk
Low
More about Quaternium-73
Carbomer~0.8–1.25%
Formula
Irritation risk
Low
Works for
Cleansing

Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations

More about Carbomer
Parfum~0.45–1.05%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Iodopropynyl butylcarbamate~0.01–0.02%
Irritant · high
Irritation risk
High

A preservative. Can be irritating

More about Iodopropynyl butylcarbamate
Dmdm hydantoin~0.1–0.45%
Irritant · high
Irritation risk
High

A preservative that releases formaldehyde and can be irritating

More about Dmdm hydantoin
Sodium hydroxide~0.05–0.3%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Allantoin~0.05–0.3%
Formula
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryAnti-blemishReduces rednessReduces irritationExfoliation

Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated

More about Allantoin
Ingredient list view

Water, Allium cepa bulb extract, Niacinamide, Sorbeth-30, Ppg-26-buteth-26, Peg-40 hydrogenated castor oil, Quaternium-73, Carbomer, Parfum, Iodopropynyl butylcarbamate, Dmdm hydantoin, Sodium hydroxide, Allantoin

Compare prices

Retailers ranked by price — lowest first.

Amazon US
Price unavailable Out of stock
Check

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

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
HiruscarPost AcneYOUR PRODUCTEmma STreatment Niacinamide FormulaLa Roche-PosayPure Niacinamide 10 SerumSOBEL SKIN Rx15% Niacinamide Gel Serum
Match—96%96%96%
Price——$51.64—
Shared key ingredients—1 of 11 of 11 of 1
Key difference—Salicylic AcidCapryloyl Salicylic AcidAllantoin
Irritancy High Low Medium Medium
Drying alcohol————
View product Shop Shop Shop
  • matches yours
  • differs
  • cheaper

More alternatives: VERSO Hydration SerumBalance Active Formula Niacinamide Blemish Recovery Serum

Cheaper alternatives? Browse formulas in the same category.
We compare ingredient profiles across our catalog — pick the closest match for your budget.
Open dupe finder

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 6 studies and safety reviews.

  1. 1
    Niacinamide - mechanisms of action and its topical use in dermatologyncbi.nlm.nih.gov
  2. 2
    Gehring, W. (2004). Nicotinic acid/niacinamide and the skin. Journal of Cosmetic Dermatology, 3(2), 88–93. doi:10.1111/j.1473-2130.2004.00115.x ncbi.nlm.nih.gov
  3. 3
    Amended Safety Assessment of Butyl Polyoxyalkylene Ethers as Used in Cosmeticscir-safety.org
  4. 4
    Amended Safety Assessment of PEGylated Oils as Used in Cosmeticscir-safety.org
  5. 5
    Safety Assessment of Iodopropynyl Butylcarbamate as Used in Cosmeticscir-safety.org
  6. 6
    Profile of wound healing process induced by allantoinscielo.br
Hiruscar Post Acne
HiruscarPost Acne
Find on Amazon

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

Find on Amazon

As an Amazon Associate, WIMJ earns from qualifying purchases.