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Doctor Youn
Plastic Surgeon

Doctor Youn.

A board-certified plastic surgeon with four published books on cosmetic medicine, Dr. Youn covers cosmetic procedures through the lens of his holistic approach to beauty, explaining what works, what to expect, and how surgical and non-surgical options fit into overall health.

Why Is He A Guru?
His credential is board certification in plastic surgery, supported by a nationally recognised practice and a trademarked professional identity he has built over his career.
Founder · Dr. Youn BeautyFounder · YOUN Beauty
43Products
32 yay86% approval rate
5 nayDoesn't pull punches
1 hot takesWhere he breaks from the pack

What they review most.

Doctor Youn's hot takes.

Products where their take diverges from the rest of the gurus.

Doctor Youn: Nay vs gurus 62% Yay
NAD is a supplement that you can take through an IV. There's oral versions, NR, NMN. And these might they might help with longevity. They might help increase your energy level, but they're not going to give her a facelifted appearance.

Every review.

All 43 products Doctor Youn has reviewed, grouped by product type. Click a product to see the full guru consensus.

All takes Yay takes Nay takes Against the gurus
Other15 reviews
"Lasers can be extremely effective for both sunspots and melasma. Today's picosecond lasers, such as Picosure, are among the most advanced options, with impressive results and relatively minimal downtime. [...] I got Picosure laser done to treat my own melasma. But I usually recommend considering lasers after you've done other simpler treatments first, because sometimes the answer isn't a $2,000 laser treatment."
Yay
81%Guru Score
"There is a new FDA approved medication that is a prescription and comes on a cloth that you can apply over your hands and feet called Qbrexza. This may be a much easier option than getting needles poked into your hands and feet dozens of times, so if you have got issues with sweating of your hands and feet, ask your dermatologist first about the Qbrexza cloth. If that does not quite do it for you, then injections of Botox may be your next best option for the armpit."
Yay
73%Guru Score
"Beef tallow is filled with healthy fats, fats that are anti-inflammatory. Plus, it can be quite moisturizing to your skin and it has a lot of healthy vitamins for your skin. So, beef tallow isn't necessarily bad for the skin, but it's also not necessarily anything that will technically deage your skin. Beef tallow can be a great moisturizer, and if you like it and you don't mind smelling a little bit like a burger, then it's okay to apply it on your skin. But a couple of caveats to that. Number one, beef tallow can be comedogenic. So, if you have a history of acne, then be careful with it and make sure that you're tolerating it fine and it's not causing breakouts. Beef tallow can eventually go rancid. So, ideally, you want to go with a commercially prepared option. And the third thing is don't expect that beef tallow is going to create those changes that you're seeing in these people's skin. [...] While beef tallow can be an effective moisturizer for your skin, it's not something that's truly anti-aging like a retinol moisturizer or other actives."
~Mixed
52%Guru Score
"These treatments work as a serum that you apply to the surface of your skin and let dry into essentially a film that contracts as it dries, making the skin look and feel tighter. It's kind of like if you put Elmer's glue on your skin and let it dry, it does feel like it shrinks and tightens that skin up underneath. One of the most popular versions of these instant tightening creams is from Peter Thomas Roth, and they had a video that went viral on TikTok showing the amazing results you can get from a cream like this. These may be great if you've got a wedding to go to or a class reunion or a hot date, but keep in mind that these results do fade away oftentimes within just a couple hours after that. You have to reapply it or you have to leave so they don't see how you really look. It's also important to realize that these creams will not permanently reduce the aging or permanently tighten up your skin. Sometimes these creams don't work very well if you're wearing makeup over them."
Yay
68%Guru Score
"Softwave uses ultrasound energy to heat the skin but it does it in a fractional pattern. There's a lot of online hype about this treatment, but the question is is it superior to other therapies. A lot of doctors are on board with being big fans of Softwave, but it is kind of the new treatment on the block. [...] If you have darker skin colors, then this may be the best treatment for non-invasive skin tightening for you because some of the other treatments can cause issues with pigmentation problems in people with darker skin."
~Mixed
81%Guru Score
"There are several animal studies that do show that when animals take rapamycin they tend to live longer and healthier. Now because rapamycin is a generic drug unfortunately there will probably be very few studies on rapamycin and anti-aging because no drug company is going to fund this. But there are biohackers who are using rapamycin as a way to potentially prolong their lives. I'm not recommending it for the general population just yet. It's only available as a prescription and at this point we still need to learn more about rapamycin to be sure that this truly is an anti-aging drug, but the promise is definitely there."
~Mixed
68%Guru Score
"The problem with the plasma pen is that number one there's no real way to prevent that burn from going too deep and creating scarring and number two there are people who are completely untrained who are doing this not only to themselves but to other people so please please please stay away from the plasma pen."
Nay
58%Guru Score
"There are other fillers that I am definitely not a fan of and these are the permanent or near-permanent fillers such as Bellafill, Radiesse, and silicone. Now while these fillers may get you the result you're looking for at least initially, my concern is if you develop a complication. If you let's say have too much filler injected, how do you get rid of them? With hyaluronic acid fillers there is an antidote called hyaluronidase which is an enzyme that can melt that filler away, some of it within literal seconds. [...] The problem is if you have one of these permanent or semi-permanent non-HA fillers and you get a complication like this, then you're basically just kind of screwed. You can do supportive treatments like warm compresses, like Neosporin ointment, like hyperbaric oxygen, but if you've got an intravascular occlusion and you have a part of your face that's not getting enough blood supply because that filler has clogged up that blood vessel, there's no antidote to remove that filler from the blood."
Nay
55%Guru Score
"JLo has her own skincare line called JLo Beauty which is filled with nourishing oils"
Yay
53%Guru Score
"Melanotan is an injectable substance that can cause the body to create more melanin making the skin look darker this is real pigment. For me it don't work so well. The interesting thing about melanotan is that technically now what people use to darken their skin is called melanotan 2 and this is actually a black market product it is not available for use in Europe Canada or the United States it's not technically legal for use yet people are injecting it under their skin as a way to make their skin darker there are major risks that can be associated with this injection including skin cancer. It's in a testing phase so it sounds like they're getting experimental melanotan 2 type of injections which is something you should definitely stay away from. I don't think I'm going to wake up and going oh no I need to go back very soon. I'm going to stay black this is so wrong that I honestly don't really have much more to say about this other than just don't do it."
Nay
47%Guru Score
"If he has some of that filler melted away from his lips, if that filler was from hyaluronic acid, he may notice that those nerves can rebound a bit. The good thing with nerves is that they can regenerate. They can regenerate very, very slowly, but they can regenerate. It's just that they've been literally killed off, which could be a major problem for him. So stopping the filler and melting some of it away is what I would also recommend."
~Mixed
61%Guru Score
"The Foreo Bear is a microcurrent device that uses a very small electrical charge to stimulate the smooth muscles under your skin to lift and tighten up. [...] By using this electrical current you can stimulate the smooth muscles to contract underneath the surface of the skin causing the skin to look tighter and lifted, and the results can actually be pretty impressive from these devices. [...] If you want to turn back the clock by five years or so literally in the span of a short at-home treatment then these devices could definitely be worth your while."
Yay
65%Guru Score
"Crest White Strips are little strips that you put over your front teeth that contain hydrogen peroxide and typically wear them for about 30 minutes and you do it every single day for about 10 to 14 consecutive days and every day when you look at your teeth you're going to see that they look just a little bit whiter. They've also come out with Express whitening where it's basically a white strip that is extra strong and you wear it for literally just an hour and you can see results immediately afterwards. They use hydrogen peroxide which is very commonly used for whitening of the teeth and it definitely works. They even have a complete system that you can buy that combines the express white with the regular whitening and LED whitening that's a type of light therapy for optimal results. If you've got staining of your teeth from let's say old smoking habits from drinking too much coffee or tea then this can definitely help with your teeth."
Yay
80%Guru Score
"Renuvion is a minimally invasive surgical option to help tighten up the neck. If you've got some loose skin of your neck maybe even a little bit of extra fat, it can be removed using Renuvion. This is a minimally invasive operation where you make a little incision under the chin and you use a special probe to go underneath the skin to heat up the deeper skin. These are real surgeries that may take half hour to an hour or so and you do get some modest tightening of that skin as well as some reduction of fat. The amount of tightening that you can get with it is definitely not the same as a facelift but it is more than non-invasive treatments like Morpheus."
~Mixed
64%Guru Score
"Plexaderm is a topical product that you can apply under the eyes and around the crow's feet area that can help to visibly reduce the appearance of puffiness and wrinkles and it works almost immediately. Plexaderm uses silicate minerals to form a temporary tightening layer of the skin, and it visibly smooths crow's feet and wrinkles. The results last upwards of 10 hours."
Yay
66%Guru Score
Tech8 reviews
"This is not a laser that you can feel, it's called a cold laser because it does not generate heat. Now there are many laser helmets out there and laser combs and other similar devices, but after doing my research I decided on the iRestore Pro laser helmet, which has 282 diodes, and after using it for a couple years I recently upgraded to the new iRestore Elite laser helmet, and this has 500 diodes. I will warn you that these laser helmets are very pricey, but if you want to try it out there's a link in the caption below to check it out."
Yay
85%Guru Score
"Have you heard of the new face device or maybe you've heard of the foreo bear well these are microcurrent devices that use a very small electrical charge to stimulate the smooth muscles under your skin to lift and tighten up"
Yay
60%Guru Score
"One device that does this is the CurrentBody Skin LED Hair Growth Helmet. [...] The CurrentBody helmet contains 120 LEDs that emit a spectrum of red light that research shows can optimally penetrate the scalp and stimulate hair follicles. This range of light has been shown to support hair growth and scalp health. The helmet comes in two different sizes, and many users see stronger, denser, healthier hair in about 12 weeks. In fact, one study showed a 123% increase in hair growth. You can also combine red light therapy with topical treatments, or you can use it on its own. And as you can see from these before and after results, the improvements can be impressive. The treatments are also incredibly convenient because you can do them at home in complete privacy. Wearing the helmet is easy and you can even multitask while using it. It's FDA cleared, HSA and FSA eligible."
Yay
83%Guru Score
"Combine it with Cure's other products like their super popular microinfusion facial treatments and you have a prescription for younger-looking and firmer skin"
Yay
79%Guru Score
"The Q Rejuvalite Pro is an FDA cleared at-home LED mask that contains five clinically proven wavelengths to actively treat the entire face for a multitude of skin concerns. The red and infrared wavelengths have been shown to naturally boost collagen, improve fine lines, and increase the firmness of the skin. You can add blue light giving you clearer and more beautiful skin, and the full treatment takes just 3 minutes so it's super easy and simple. Dermatologists love it too."
Yay
Notverified
"The light is absorbed by the hair follicle resulting in thinner hair regrowth. It has dual light technology for stronger, faster, and more effective results. You can get visible results in just two weeks, and its next generation ice cooling technology makes the treatment nearly painless and super safe. The Ulike Air 10 is great for removing stubborn hair from the beard, bikini, underarms, and chest. Before Ulike, my chest was like this, and now after Ulike, my chest is completely hairfree."
Yay
Notverified
"I started using the iRestore Professional Hair System about a year ago now and it treats the majority of my scalp. I use it 25 minutes every other day, typically when I'm reading or watching TV or scrolling through my phone. I've seen it create nice changes in the thickness of my hair. The iRestore combines 282 lasers and LED lights to stimulate the hair follicles to stay in a growth phase. This FDA cleared, clinically proven technology is non-invasive, hands-free, and easy to use. Results may vary, but I love that iRestore stands behind their product with a 12-month money-back guarantee."
Yay
82%Guru Score
"I've been using the iRestore myself for the past year and I give it my highest recommendation. Low-level laser therapy is a scientifically proven way to improve thinning hair. The light energy is like water and nutrients for the hair, absorbed by the hair follicles, and it functions to keep your hair in a growth phase. I started using the iRestore professional hair system about a year ago. It treats the majority of my scalp and I use it 25 minutes every other day, typically when I'm reading or watching TV or scrolling through my phone. I've seen it create nice changes in the thickness of my hair. The iRestore combines 282 lasers and LED lights to stimulate the hair follicles to stay in a growth phase. This FDA cleared, clinically proven technology is non-invasive, hands-free and easy to use. Results may vary, but I love that iRestore stands behind their product with a 12-month money-back guarantee."
Yay
84%Guru Score
Haircare5 reviews
"The gold standard topical treatment for thinning hair is Minoxidil, better known as Rogaine. Now, it used to be prescription only, but now it's available over the counter, and you can even get it on Amazon or at Costco. It comes in both serum and foam versions, but I recommend the foam, and I actually use the foam myself everyday. And here's a great tip from the dermatologist, Dr. Shireen Idris: you can apply it using a toothbrush to get more of it onto your scalp and less of it on your hair where it won't do anything. Now, it can take around four months or more to see a noticeable change, but I encourage you to stick with it. It works. And keep in mind that Minoxidil is toxic to cats and dogs."
Yay
86%Guru Score
"Everyone's telling me to use Head and Shoulders as a face wash. Head and Shoulders is antifungal, so it helps fungal acne. You guys, it worked. Look at my skin. She's healing. I cannot believe that this actually worked. Head and Shoulders cleared my skin in 3 days. So, is this something that you should try? Well, only if you have real fungal acne. It's true that Head and Shoulders can treat that type of fungal acne, but technically, once again, it's not like the acne that you're used to."
Yay
74%Guru Score
"Nutrafol Women's Vegan Hair Growth Supplements contains amino acids and minerals to add additional nutritional support for those of you who are on a plant-based diet. Like other Nutrafol products it can take many months, four maybe six months, to see a result from this treatment so you really have to be patient. But I've heard from many many patients who swear by their Nutrafol and I definitely recommend combining an oral supplement like Nutrafol with other modalities and topical treatments like low light laser therapy, like serums and these types of things so you're thickening your hair from many different directions."
Yay
Notverified
"More recently I switched over to a shampoo from Nutrifol. They recently came out with a shampoo specifically made for people who have thinning hair, and I just started using that recently and I'm hoping to see some more nice changes with it. I'm going to continue with the Nutrifol shampoo as part of my ongoing treatment."
Yay
81%Guru Score
"Deficiencies are another very common cause of hair thinning. Now you can go to a doctor and get your labs drawn to see what you may be deficient in, or you can consider an all-in-one hair thinning supplement, one like Nutrafol. Nutrafol is an all-in-one hair supplement. They make it for men, they make it for premenopausal women, post-menopausal women, and vegan women as well. I regularly take Nutrafol to help with my hair."
Yay
63%Guru Score
Serums5 reviews
"Growth factors are used in certain skin creams, most famously SkinMedica's TNS complex."
Yay
69%Guru Score
"I would give exosome serums right now an eight out of ten. Exosomes really are the future of skincare. These are essentially little messenger packets that will cause your skin to act in a certain way. Right now, we're kind of in the infancy, I think, of exosome serums in that they can help reduce redness, possibly improve fine lines, but I think we've got a lot in the future that exosomes can do. A lot of patients post treatment that use it say they feel like their skin heals a lot quicker, but that also is maybe attributing to the anti-inflammatory, getting rid of redness. I think it's the future. But I would knock one or two off because they're damn expensive. But it's replacing some other stuff if you look at it like that. So we carry the Plated exosomes in the office and you've seen some patients who've used that."
Yay
74%Guru Score
"There was a study that found that if you combine vitamin C with vitamin E you can get a synergistic effect and what that means is that their antioxidant abilities are actually much greater when you combine vitamin C and E than when you use them separately and this is why SkinCeuticals C E Ferulic is one of the most popular vitamin C serums of all time."
Yay
77%Guru Score
"Even better than trying the retinol sandwich if you're sensitive to retinoids is Clarins Double Serum. This is one of the best retinol alternative serums. It contains organic Harungana extract, which is a gentler alternative to retinol that performs like retinol but without the irritation. In a 56 day comparative head to head study versus retinol, Clarins Double Serum achieved very comparable results. In addition to the instant benefits of comfortable, hydrated, and smoother skin, after one month over 90% of users found improved skin texture, firmer skin, and less visible wrinkles. Unlike retinol, there are no sun sensitivity concerns. It contains 22 plant extracts and five active molecules and is a perfect foundation for an anti-aging skin care routine."
Yay
62%Guru Score
"If you want to avoid the filmy look on your eyelids that you get with instant lift serums, yet still improve your dark circles both immediately and long term, you need to check out Clarins Double Serum Eye. It's overall the best eye cream for dark circles. Dark circles have multiple causes, including pigmentation and circulation issues, so you have to target those causes directly if you want to see a real improvement. It contains niacinamide to address brown dark circles by reducing hyperpigmentation, and horse chestnut essence to minimize blue and purple dark circles by boosting microcirculation around the eyes. Studies found a 27% reduction in dark circles in seven days, a 22% reduction after two weeks, and a 38% reduction after just one month, and overall 91% of participants saw their dark circles reduced."
Yay
72%Guru Score
Balms & Ointments3 reviews
"Triple Paste is a zinc oxide based cream, a diaper rash cream, and zinc oxide is gold. It will help repair your face and heal your skin while locking in hydration. If you've got really dry irritated skin, zinc oxide which is the main component in Triple Paste is a good occlusive and it can help to improve that dryness, that real irritated unhappy type of skin that you may have. However, if you've got acne issues, this can potentially worsen them in the wrong patient."
Yay
80%Guru Score
"Not a good idea at all, horrible idea. Neosporin is an antibacterial, not only can it cause skin irritation, but you're also disrupting the microbiome on your skin, the microbiome, that are the trillions of bacteria that live on the surface of your skin. And if you use Neosporin, you're killing that bacteria, that bacteria is super important for your skin health. You do not want to do that."
Nay
31%Guru Score
"Vaseline only contains completely refined petroleum jelly, and if you look at the back of the label it's called white petrolatum, which is completely refined and completely safe to put on your skin. So feel free to apply petroleum jelly on your skin if you need its occlusive and moisturizing properties. It is safe as long as it's completely refined."
Yay
86%Guru Score
Masks & Peels2 reviews
"While the treatment did make my skin feel smoother and look a lot brighter, did it heal my acne scars and large pores? I would say no unfortunately. The treatment is almost three hundred dollars, so if you're doing three or four peels that's three or four weeks total of downtime, and that is a lot for people. There's got a little too much downtime. But I do believe chemical peels are pretty good value for your buck. They're better value than laser treatments that can get you a similar result."
~Mixed
74%Guru Score
"The iRestore Illumina Face Mask is the highest quality and best value LED mask on the market today, with two times the LEDs compared to competitors for optimal results. Unlike other LED masks, it has triple wavelength technology and three settings: red and infrared to boost collagen, improve elasticity, and smooth fine lines, red, infrared and blue together to combine anti-aging and acne-reducing benefits, and blue on its own to target acne-causing bacteria and regulate oil. It's lightweight, portable, and has built-in eye protection. One study found that 87% reported smoother wrinkles and lines, and 94% saw improved tone and texture."
Yay
82%Guru Score
Supplements2 reviews
"Nutrafol Women's Balance is one of the few supplements formulated specifically for post-menopausal women, and it contains many of the ingredients that help support hair health, such as ashwagandha which can help reduce the body's stress response, and collagen peptides. Early studies suggest that collagen may help keep hair in the growth cycle and collagen also provides important building blocks for hair structure."
Yay
82%Guru Score
"NAD is a supplement that you can take through an IV. There's oral versions, NR, NMN. And these might they might help with longevity. They might help increase your energy level, but they're not going to give her a facelifted appearance."
Nay
62%Guru Score
Concealer1 review
"I can't live without this Teint Idole concealer."
Yay
88%Guru Score
Eye Care1 review
"If you want to try one that's quite inexpensive, Sudden Change Under Eye Firming Serum has been around for many years and it's not expensive at all. You can get it on Amazon and it definitely works. These products are very effective because they act kind of like Elmer's glue as they dry on your skin, leaving a very thin film that constricts and causes puffiness to be less visible. However, the problem with these treatments is that they usually leave behind a thin film that can be visible, and once this wears off, your eyelids will go back to what they looked like before."
Yay
66%Guru Score
Moisturizers1 review
"Servey sery is another option that's good too"
Yay
88%Guru Score

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Doctor Youn is not affiliated with, and does not endorse, The Guru Index. Every quote on this page comes from his public YouTube videos, linked at the timestamp. Verdicts and approval stats are our editorial read of what he said. "Guru" is a title we award, not a sign of any affiliation.