‘It works wonders,’ shoppers rave over $30 collagen treatment that helps knotted hair ‘grow 2 inches’ overnight

PEOPLE are fawning over a $30 product from Amazon that some say can make your hair grow within hours.

The collagen treatment has consumers on hair growth journeys excited.

Karseell sells its hair mask for $29.99, specifically geared toward shoppers with dry, damaged tresses.

The product contains collagen, argan oil, maca, and natural herbs.

The formula is paraben-free, sulfate-free, and appropriate for color-treated and chemically processed hair.

What sets Karseell's hair treatment apart from the others is the maca essence.

"It can deliver magic activating energy to damaged hair," the company wrote on Amazon.

While the maca essence fixes the damage, the Morrocan argan oil helps seal in the moisture and can prevent split ends.

The product has a 4.4 rating out of 5 stars from more than 2,336 reviews.

One customer went so far as to claim the hair mask helped her tresses grow two inches overnight.

"When I washed it out, my hair was SO SOFT," one person wrote. "My hair, usually to mid-back, was actually about an inch or 2 longer."

"This stuff truly works wonders," a second said.

It can also help with knotted locks.

"I would definitely recommend this for those that have course, hard to comb or get tangles in their hair. This is the right stuff," a third posted.

Several shoppers loved the scent of the product.

"The scent is amazing, it immediately tames and softens the hair," a reviewer said.