Review on 🎨 L'Oreal Paris Superior Preference Fade-Defying + Shine Permanent Hair Color, 6AB Chic Auburn Brown, Pack of 2: Vibrant and Long-lasting Hair Dye by Kim Lane

I have been using this product for years. I usually buy it at the local pharmacy. When I found out that Revain offers this on a subscription basis, I decided to give it a try. My husband, who usually dyes my hair, immediately noticed the strong smell when he applied the product. I noticed it too. The smoke got so strong that we decided to turn on the fan in the bathroom. I know this product doesn't give off any strong fumes because I've been using it for literally years. So of course it was incredible. But what's worse, I've had this severe unrelenting headache literally since the day after I used the product 3 days ago and it hasn't left me since. I rarely get headaches. I strongly suspect that the product is either expired (I can't find an expiration date on the packaging) or is counterfeit. I don't write reviews on Revain but since this experience is so bad I think people should be aware. I will definitely not buy it here again.