Cardi B would possibly simply know what she’s speaking about relating to hair care.

A hair knowledgeable weighed in on the efficacy of the weird onion hair-growth hack that the “WAP” rapper touted in a now-viral publish.

The 29-year-old rapper shared on Instagram that she washes her hair with boiled-onion water. 

“My last 2 washes I been boiling onions and using the water to wash my hair,” she captioned an image of her pure hair.

The “I Like It” singer shared that she beforehand used this technique six years in the past when she began her “healthy hair growth journey,” however stopped out of laziness.

Although it might seem to be an outlandish hack, there may very well be a scientific cause behind Cardi B’s technique.

Arran Sherwood, a senior trichological specialist at FUE Clinics, stated that “onions, based on some fundamental properties, could help to nourish and promote a healthy scalp and hair.”

The anti-inflammatory and anti-microbial properties of onions may also help hair develop or improve its look, in keeping with Healthline.

Plus, onions are wealthy in sulfur, which is critical to regenerate hair follicles, Sherwood stated.

“Onions have anti-bacterial properties that keep the scalp free of infection, providing unhindered hair growth,” he stated. “Onions are excellent sources of flavonoid anti-oxidants which benefit circulation by helping arteries and veins to widen.”

Sherwood additionally shared {that a} frequent enzyme present in onions — catalase — helps eliminate hydrogen peroxide, which is able to defend hair cells from injury from oxidization.

Cardi B stated she beforehand rinsed her hair with onion water six years in the past when she began her “healthy hair growth journey,” however stopped out of laziness.Instagram/Cardi B

However, Sherwood warned that extra analysis is required to show that onion water is definitely helpful to hair.

“All evidence of real-world application and subsequent effectiveness is anecdotal,” he stated. 

While it might show to really work, Sherwood stated, “The placebo benefit cannot be ruled out.”

Healthline additionally discovered that onion juice can have a number of advantages relating to hair, together with hair progress, moisturizing, calming an itchy scalp, diminishing dandruff and even treating alopecia.

Science apart, on-line reactions to Cardi B’s hair-care method had been optimistic and inspiring.

“If Cardi washes her hair with onion water, we wash our hair with onion water,” Instagram’s official account wrote in a remark.

“DROP A HAIR LINE SIS,” chimed in one other, whereas another person stated: “Let me put a pot of onions on rn.”

“She’s giving out the Dominican secrets,” one other quipped.