So I sent a sample of pink lid g&g Teint Uniforme to a lab and the product does contain trace amounts of mercury (.005 ppm to be exact). I say trace amounts because it is less than what is found in fish that we consume. The average serving of fish has .2 ppm. Mascara and other eye make up cosmetics have a legal limit of < 1 ppm.
I'll paste the links of some articles below that can help with understanding what these numbers mean and comparison. I wish it had zero ppm of mercury but honestly I only use it once a week, so I'm not too worried about those minuscule amounts, however if you feel you are already getting more than enough mercury from other products you are using and fish, it wouldn't be unreasonable to cut this product out.
I will send more samples to test this product for HQ and steroids and let you guys know what I find. Please chime in if you can help better understand the results and amount of mercury.