Functions: DMDM Hydantoin is a controversial ingredient because of its formaldehyde properties. Although the releasing of formaldehyde is the process that makes the environment less favorable for microorganisms (source), this process is what makes it an effective cleanser and preservative in many beauty products.unctions: DMDM Hydantoin is a controversial ingredient because of its formaldehyde properties. Although the releasing of formaldehyde is the process that makes the environment less favorable for microorganisms (source), this process is what makes it an effective cleanser and preservative in many beauty products.
Anything above 7.0 is alkaline, anything below 7.0 is considered acidic. Human blood stays in a very narrow pH range right around ( 7.35 - 7.45 ). Below or above this range means symptoms and disease. If blood pH moves to much below 6.8 or above 7.8, cells stop functioning and the patient dies. The ideal pH for blood is 7.4.
1 In plasma, the normal ratio of bicarbonate (HCO3-) to carbonic acid (H2CO3) is 20:1. 2  This ratio keeps the blood pH level within the normal range of 7.35 to 7.45. 3  Blood pH becomes more alkaline as the ratio increases (for example, 22:1). pH of 7 is neutral, below 7 is acidic, and above 7 is basic. The pH is defined as the negative logarithm, to the base 10, of the H+ concentration. o pH = -log10[H+]. The normal pH of arterial blood is 7.35 to 7.45.