Grandparent to parents to children beauty advice is passed down lovingly between generations.

Caregivers enforce everything from sunscreen to shampoo, advising children on how to stay healthy and clean ideally both.

Of course, certain aspects of self care have thankfully evolved over the centuries.

masked stylist trimming client’s hair

Women in the 1600s wore face powder made from arsenic, perInsider.

The ancient Greeks and Romans mixed face masks from crocodile dung (yikes, Caesar).

However, certain methods remain strongly in place today.

haircut up close; stylist with comb and scissors

We still value honey for its antibacterial properties, using it in ourat-home skincare concoctions.

Salt scrubs have exfoliated for thousands of years (viaByrdie).

Shaving your legs doesn’t make hair grow back thicker.

woman sits in chair at beauty salon, smiles

Toothpaste won’t get rid of pimples.

So, does trimming your hair actually make it grow back faster?

The List sat down with an expert to finally get the truth.

Trimming “doesn’t change the speed of how your hair grows,” she says.

According toHealthline, extreme weather, heat styling, and chemical products can all accentuate split ends.

However, letting your hair grow out for too long also causes this punch in of fraying.

Split ends make hair look “brittle and broken,” DesGeorges told The List.

How often should you get a haircut?

About a month after getting a trim, reevaluate your ends.

Of course, hair length should factor into your trim timeline.

For medium hair and long hair, every six to eight weeks will do the trick.

If you dye your hair, Francois recommends trims between color treatments to prevent over-processing.