Cos De BAHA Hydroquinone Brightening Serum (HB) 30ml30ml

Key Ingredients

• Hydroquinone (2%): the headline skin-brightening active in this serum. IMPORTANT REGULATORY CONTEXT: Hydroquinone is banned as a cosmetic ingredient in the European Union. In the United States, the FDA determined in 2020 that no over-the-counter Hydroquinone skin-lightening product, at any concentration, is Generally Recognized as Safe and Effective -- Hydroquinone is now available in the US only by prescription. Long-term or excessive use has been linked to ochronosis, a potentially permanent blue-black skin discoloration. MedEasy did not find a specific Bangladesh regulatory ruling on this ingredient, but presents this product with the caution its international regulatory status warrants
• Arbutin, Niacinamide, Kojic Acid: additional brightening-supportive ingredients confirmed in the formula; these are more widely accepted, evidence-backed brightening actives compared to Hydroquinone
• Salicylic Acid: a beta-hydroxy acid (BHA) also present in the confirmed ingredient list, contributing mild exfoliation
• Also contains Aloe Vera Leaf Extract, Propanediol, 1,2-Hexanediol, Citric Acid, Sodium Citrate, Hyaluronic Acid (Sodium Hyaluronate), Lactic Acid, and Disodium EDTA per the confirmed panel; some retailer listings additionally cite botanical extracts such as Witch Hazel, Rosemary, and Eucalyptus

Key Features

• Manufactured by Cos De BAHA, a South Korean skincare brand, with production at a specialized South Korean skincare manufacturing facility per the brand's own statement
• This product should be approached as a stronger, medical-grade-adjacent brightening treatment rather than a routine daily cosmetic, given the international regulatory controversy around its headline active ingredient
• Sold under the "(HB)" designation; a separately-listed non-"HB" version with a similar name and ingredient profile also exists -- these should not be assumed identical without checking the physical packaging

Benefits

• Marketed to help support the appearance of a more even skin tone in areas of visible discoloration, through a combination of Hydroquinone, Arbutin, Niacinamide, and Kojic Acid
• MedEasy does not present this as a claim that the product treats, cures, or removes any specific skin condition. Given Hydroquinone's mixed international regulatory standing, any use for a diagnosed skin condition such as melasma should be discussed with a dermatologist first, rather than self-directed based on marketing claims alone

Who Can Use This Product

• MedEasy recommends consulting a dermatologist or doctor before starting this product, particularly given Hydroquinone's restricted/prescription-only status in several major regulatory markets
• Not recommended during pregnancy or while breastfeeding without medical guidance
• Not recommended for continuous, indefinite daily use -- see usage guidance below on cycling on and off this product
• A patch test is strongly recommended before first use
• Discontinue use and consult a doctor if irritation, unusual discoloration, or an allergic reaction occurs

How to Use

• Patch test on a small area before first use
• Apply to clean skin at night; consider starting with every-other-day use rather than nightly use, and increase frequency only as tolerated
• Daily sunscreen use on treated areas is mandatory, as Hydroquinone increases photosensitivity and unprotected sun exposure can worsen the discoloration being targeted
• Per commonly-cited usage protocols for Hydroquinone products, use is generally limited to a maximum of around 60 consecutive days, followed by a break of about 30 days before resuming, to help reduce the risk of ochronosis; continuous, indefinite use is not recommended
• Discontinue and seek medical advice if irritation becomes severe or if any unusual skin discoloration develops

Storage & Safety

• Store in a cool, dry place away from direct sunlight
• Keep the bottle tightly closed after use
• 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, unusual discoloration, or an allergic reaction develops

FAQ (Frequently Asked Questions)

Q: Is Hydroquinone safe to use?

A: Hydroquinone's regulatory status varies significantly by country -- it is banned as a cosmetic ingredient in the EU and available only by prescription in the US due to concerns including ochronosis (a potentially permanent skin discoloration) with long-term or excessive use. MedEasy recommends consulting a dermatologist before use and following the cycling guidance (limited-duration use with breaks) described above.

Q: Can I use this every day, indefinitely?

A: No, this is not recommended. Commonly-cited usage protocols for Hydroquinone limit continuous use to about 60 days, followed by a roughly 30-day break, rather than ongoing daily use without interruption.

Q: Do I need sunscreen while using this product?

A: Yes, this is mandatory, not optional. Hydroquinone increases the skin's sensitivity to sun exposure, and unprotected sun exposure can worsen the discoloration this product targets.

Q: Who manufactures this product?

A: Cos De BAHA, a South Korean skincare brand, manufactured at a specialized South Korean skincare facility per the brand's own statement.

Q: Does this product cure melasma or dark spots?

A: MedEasy does not present this product as curing or treating any diagnosed skin condition. If you have a diagnosed condition such as melasma, consult a dermatologist before using any Hydroquinone-based product.