From simple keyword flags to advanced audits, this universal function outperforms modern tools for everyday Excel tasks.

Excel made things easier, I just never noticed.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Rory Evans Rory Evans is a writer focused on skin-care and beauty products.

Wellness influencers tout the therapy's power for everything from rejuvenating skin and hair to boosting longevity. Devices sold for at-home use abound. We look at the evidence behind the hype.