
Product overview
Key Ingredients
- Kojic Acid: the headline brightening active, per the product name; its concentration is not disclosed by any source found
- Alpha-Arbutin: a brightening ingredient referenced in the brand's marketing, alongside Kojic Acid
- Tocopherol (Vitamin E): included as an antioxidant/conditioning ingredient, per marketing materials
- Sourcing caveat: MedEasy could not find a complete INCI ingredient list for this product from any source, including the brand's own affiliated sites. Only marketing-level ingredient mentions are available (Kojic Acid, Alpha-Arbutin, Tocopherol, Glycerin, described as a "98% natural soap base"), and Kojic Acid's concentration is not disclosed
- Important format-specific safety note: unlike a leave-on serum, bar soap has brief and uneven skin contact time, and soap is typically alkaline (often around pH 9-10). This higher pH can both increase Kojic Acid's potential to irritate skin and cause the ingredient itself to degrade or brown over time. This is a relevant caution regardless of the exact, undisclosed concentration used
Key Features
- Manufactured under the Sadoer brand; MedEasy could not confirm a specific manufacturing facility or country of manufacture from any source checked
- Brand-mislabeling caution: Sadoer products have repeatedly been found mislabeled as "Bioaqua" on some Bangladesh retailer listings in MedEasy's research across multiple batches. Buyers should confirm the packaging clearly shows the Sadoer brand name before purchase
- Marketed for brightening and use on acne-prone skin
Benefits
- Kojic Acid is a well-known ingredient associated with skin-brightening support in cosmetic use
- Evidence caution: because the concentration and full formula are undisclosed, and the soap format may reduce effective contact time compared with leave-on products, MedEasy cannot verify the strength of the brightening claims for this specific product
Who Can Use This Product
- Adults looking for a Kojic Acid-containing cleansing bar as part of a skincare routine
- Given the undisclosed concentration, the alkaline nature of soap, and Kojic Acid's known potential to cause contact dermatitis at higher exposure, those with known skin sensitivities should introduce this product gradually and patch-test first
- Not recommended for use on broken or highly irritated skin
- Discontinue use if irritation, redness, or an allergic reaction occurs
How to Use
- Wet the skin and the soap bar with water
- Lather gently and apply to the face or body, avoiding prolonged contact time or vigorous scrubbing
- Rinse thoroughly with water and pat dry
- Consider starting with less frequent use (such as every other day) to assess tolerance before daily use
Storage & Safety
- Store in a cool, dry place away from direct sunlight
- Keep the soap in a dry dish between uses to prolong its shelf life
- Keep out of reach of children
- Avoid contact with eyes; rinse thoroughly with water if contact occurs
- Discontinue use and consult a doctor if irritation or an allergic reaction develops
FAQ (Frequently Asked Questions)
Q: What is the Kojic Acid concentration in this soap?
A: This is not disclosed by the brand or any retailer MedEasy checked.
Q: Is a Kojic Acid soap safe to use daily?
A: Because bar soap is typically alkaline and has brief, uneven skin contact time, Kojic Acid in soap form can be more irritating than in a leave-on product. MedEasy recommends starting with less frequent use and patch-testing first, especially if you have sensitive skin.
Q: Who manufactures this product?
A: MedEasy could not confirm a specific manufacturing facility or country of manufacture for this brand from any source checked.
Q: Is this genuinely a Sadoer product?
A: Sadoer products have repeatedly been found mislabeled as "Bioaqua" on some Bangladesh retailer listings. Please confirm the packaging clearly shows the Sadoer brand name before purchase.
Q: What is the full ingredient list for this soap?
A: MedEasy could not find a complete INCI ingredient list from any source. Only Kojic Acid, Alpha-Arbutin, Tocopherol, and Glycerin are mentioned in marketing materials.
The information provided is accurate to our best practices, but it does not replace professional medical advice. We cannot guarantee its completeness or accuracy. The absence of specific information about a drug should not be seen as an endorsement. We are not responsible for any consequences resulting from this information, so consult a healthcare professional for any concerns or questions.