Nicotine presence can be detected in the blood for a short period only (about 48 hours) . However, its metabolite, cotinine, can be detected up to about three weeks from the last use and the cut-off detection levels is 200 ng/ml.
Q: What is the purpose of toner? Our skin is happiest at a pH of 5.5. Toner balances the pH of your skin. If you are acne prone the skin is too acidic. So finding a slightly alkaline toner can help balance the acidic nature. If the skin is dry, it is too alkaline, so finding a toner that has a lower pH can bring it to a happy balance of 5.5. Toning 1 minute after cleansing allows all the beneficial molecules to absorb into the skin as it is still wet.
For those of you who are die-hard bottle water drinkers, I offer the following list of popular brands of bottled waters and their pH range. Keep in mind that a pH of 8 and above is the only range that is beneficial to your good health: Water with a pH of 4.Penta Water, Distilled Water, Purified Water, Aquafina (made by Pepsi), Dasani (made by Coke), Glaceau Fruit Water, Le Blue Water, Metro Mint Water, Pellegrino (made by Nestle), Perrier (made by Nestle), Smart Water, and Vitamin Water. Water with a pH of 4.5.ater with a pH of 4. Penta Water, Distilled Water, Purified Water, Aquafina (made by Pepsi), Dasani (made by Coke), Glaceau Fruit Water, Le Blue Water, Metro Mint Water, Pellegrino (made by Nestle), Perrier (made by Nestle), Smart Water, and Vitamin Water. Water with a pH of 4.5.