【COSNORI】 COSNORI Easy Brow Tone Changer This is a self-use eyebrow bleaching agent. Contains 5 applications. Purchased from COSNORI's official online store. Turns eyebrows brown in about 3 minutes, and light brown in about 5 minutes. My personal experience: The 8th photo shows an example of use after 3 minutes. Even thick eyebrows became lighter. To protect my skin, I applied Vaseline to the skin before applying the solution to avoid any pain. I felt less stinging compared to other famous Korean cosmetic bleaching agents. When used in conjunction with eyebrow perms like Hollywood Eyebrow, it put a strain on my eyebrows, and I felt like the amount of hair decreased. I think it's better to leave some time between uses. This is just my personal opinion, but I hope it helps. COSNORI is a popular brand of eyelash serum in Olive Young, Korea, so I think you can use it with confidence. It comes in single-use packs, so it's also recommended for trying out. 5 applications. Please refrain from price reduction requests. Eyebrow bleaching Eyebrow bleach Eyebrow color Brow bleach Self-brow Mood changer Korean cosmetics Cosmetics Beauty Olive Young Oryan Eyebrow brow bleach Bleached brown Eyebrow specific Hair dye Korean makeup OLIVE YOUNG Olive Young Eyebrows Color Bleaching Bleach