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Bio-Oil Skincare Oil Review
Credit: Amazon

There's a reason certain skincare products develop a cult following, like this customer-favorite Aztec Secret clay mask or Laura Mercier's top-rated tinted moisturizer. Yes, it might be the pretty packaging or branding on Instagram that draws you in, but when a product is actually good, devoted skincare and beauty customers will let you know (praise be to reviews!).

If you're like me and rarely want to switch up your skincare or makeup routine because you've used the same products and brands for years since you know they work for your skin, it can be hard to bite the bullet to test out new products. With summer quickly approaching, I've been searching for a product that will help diminish the scars and stretch marks on my legs that I hate, and that's when I stumbled across Bio-Oil on Amazon, which has more than 4,000 five-star reviews.

After reading the product description and some of these reviews, I quickly learned that Bio-Oil can be used for more than just helping reduce the appearance of scars or stretch marks—this cult-favorite oil has close to 15 different uses thanks to its blend of natural oils that promotes skin healing and addresses common skin concerns.

Related: I Can't Live Without This Rose Oil That Treats Fine Lines and Acne at the Same Time

I wanted an expert's opinion on if Bio-Oil is actually effective for some of the many claims made, including healing acne scars, banishing dry skin, taming pesky hair flyaways, using as a makeup remover, reducing a flaky scalp, and refreshing puffy eyes. I spoke to board-certified dermatologist Dr. Rita V. Linkner to get the lowdown on how Bio-Oil can actually be beneficial for your skin or hair.

Bio-Oil Skincare Oil

Bio-Oil Skincare Oil
Credit: Amazon

To buy: $23; amazon.com.

How does Bio-Oil work exactly?

Curious about the ingredient PurCellin Oil that Bio-Oil considers as "breakthrough," I asked Dr. Linkner to explain its benefits.

"Inspired by the preen gland oil of ducks, PurCellin Oil serves as the delivery system, helping the natural botanical extracts absorb quickly deep beneath skin's surface without leaving behind oily residue," she says. "The proprietary ingredient gives Bio-Oil a light, non-greasy texture and ensures maximum efficacy of the ingredients."

How can different skin types take advantage of Bio-Oil’s many uses?

Dr. Linkner emphasized that Bio-Oil can work on any skin type at any age, but it's especially great for expecting moms, aging skin, or women suffering from arthritis or eczema. For areas affected by sun damage or eczema patches, Bio-Oil acts to combat dryness and moisturize.

"For expecting moms, pack Bio-Oil in your hospital bag to use in those first few days of post-pregnancy. Most women don't realize that rapid weight loss during post-pregnancy can also contribute to stretch marks, so it's best to continue using Bio-Oil two to three times a day when in post-pregnancy recovery, in order to help skin rebound to the best of its ability by keeping it supple and hydrated. Bio-Oil is also a great way to massage arthritic joints. It works well for xerotic skin, especially of the lower legs where circulatory changes often affect the texture."

How often should I be using Bio-Oil to see its effects?

"Apply Bio-Oil twice daily, massaging in a circular motion until fully absorbed, and you should start to see the results within four to six weeks of daily use," she says. "I would stress the importance of using Bio-Oil post showering when skin is at most moist, given all the stripping of hot water and soap chemicals. I tell patients to rub on Bio-Oil after a light toweling off to reinforce the beads of water on the body back into the skin."

While I found the solution to definitely be too oily to use on my face and underneath my foundation, I have seen improvement in the appearance of some deep scars on my legs, and I'm going to continue using it for even more results—fingers crossed!