The other defense against acid is fluoride. As the active ingredient in many toothpastes and rinses, topical fluoride lowers the susceptible pH of enamel from 5.5 to 4.5, meaning any acid must be ...

The pH scale ranges from 0 to 14, with 0 being highly acidic and 14 being highly alkaline. A pH value of 7 is considered ...

Some products are specifically designed to be a lower pH, such as alpha hydroxy acids, so they can do their function. In this case, the acidic nature helps loosen up all the intracellular glue that ...

New Haven, Conn. — Scientists at Yale and in Singapore have devised what may be the ultimate acid test — a comprehensive model for estimating the origins of Earth’s habitability, based in part on ...

MANILA, Philippines — The Philippines’ dollar reserves declined at the start of the year, hitting a nine-month low after the central bank continued to defend the peso from too much volatility ...

The Philippines opened 2025 with a dollar deficit that was almost as big as the shortfall seen during heightened market volatility 11 years ago following the so-called “Fed tapering.” But this time, ...

A nationwide survey of 11,163 households showed there were 1.63 million people who were jobless or out of business in December, lower than the 1.66 million unemployed in November, the Philippine ...

For the average person, living at high altitude—where oxygen is sparser than at sea level—can have health benefits ranging ...

Substances that are alkaline are basic, or the opposite of acidic — they have a high pH, while acids have a low pH. Lower pH levels reflect a higher quantity of positively charged particles.

The state-run weather agency said on Thursday that it has been monitoring a low pressure area (LPA) outside the Philippine ...