Does Mederma Really Work?

by Jessie Lin

Mederma is a product meant to soothe scars and make them less noticeable. Created by a company called Merz Pharmaceuticals, this topical gel’s active ingredient is called Allium cepa, which is basically onion extract. In this entry, I’ll try to answer questions like, “How does Mederma work?” “Does Mederma Really Work?” And “Does Mederma work on old scars?”

What is Scar Tissue?

Scar tissue is body tissue that replaces normal skin tissue when the area is injured; it is the result of the body’s healing process, and unless it’s really minor, all wounds will scar over to some degree.

The biggest problem most people have with scarring is that it’s obvious and usually unsightly. This is why there are a lot of different products available that aim to prevent scar tissue from forming in the first place, as well as encourage actual skin cell regeneration.

Mederma is one such product. In this entry, I hope to answer questions people might have about it. I’ll go on a question by question basis, so that the answers will be easier to find and all the bases will be sure to get covered.

How Does Mederma Work?

Allium cepa (which is basically onion extract), is Mederma’s active ingredient. It is both anti-inflammatory and can improve collagen organization. This active ingredient is supposedly what makes Mederma special. The anti-inflammatory property of allium cepa means that if an area of the skin is swollen, it can keep the swelling down and could help the collagen that keeps skin plump and supple so that unsightly, depressed scars are less pronounced or less likely to form.

Does Mederma Really Work?

Of course, now that we know what Mederma does, the next question would be whether or not it’s actually effective.

It seems there are a bunch of people who think so, and a bunch of people who don’t…

Some people say the product apparently doesn’t do much for scar tissue except maybe make it feel slightly softer to the touch. These reviewers say that to get the same effect, it would be better to use cheaper, more readily available products, like vegetable oil.

There are some people who claim that Mederma does work though; as long as it’s applied daily and three to four times a day, over a period of two months for new scars, and three to six months for old scars.

Whether you’re in the “don’t bother” camp or the “buy it now!” camp though, be forewarned that like any other topical scar-relief product Mederma can be a bit pricey. For example, online, a tiny 0.7 oz tube of the product can set you back by as much as $13.40 USD. If it works for you, it’s actually a bargain, though.

mederma 3 pack

Does Mederma Work on Old Scars?

Mederma proponents do say that it works on old scars though; it just takes a lot longer to take effect. The people who say it doesn’t work at all, though, would say otherwise…

“How does Mederma work?” “Does Mederma really work?” and “Does Mederma work on old scars?” are all valid questions to ask, and in this entry, I hope that I’ve answered them adequately.

One thing that you should definitely keep in mind though; is that even though Mederma’s meant to be used on wounds that have already healed and closed up, you should never apply it to fresh, open wounds. It hurts. A lot.

If you want to give it a go, it would be in your best interest to buy enough tubes so that you can follow their recommended instructions about how much and for how long to use it, so you can give it a fair chance to work it’s magic. I found the best price for a 3 pack of Mederma, which you can see here.


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{ 40 comments… read them below or add one }

Tracy May 6, 2010 at 1:36 pm

My Husband bought this at the request of his physician to use on a recent post surgical scar. I have used it for the past two weeks on by chest which has been scarred and lined due to years of sunburn. I have noticed an improvment that is really very remarkable, all things considered. I had been using lotion on this area for months/years with no improvement whatsoever. Not only are the sunburn scars much less shiny, the lines are much impoved as well. I guess I am my own clinical trial.


maria June 5, 2010 at 4:05 am

I had a son 5 years ago and got horrible scars, never used anything but cocoa butter cream for about a month and that was it. A year ago I had another baby girl and it made the old scars a bit worse and I got a few new ones. Agin, did not use any, products to prevent scars.(My scars are not raised or purple nor red though.) I just used this product for about a week and even though it was about $19 for a 20g tube it was better than than having to buy creams that are a lot more expensive. This is truly working so far. I don’t believe it will completely erase my scars, but it working very good on it so far. I will buy one of the more expensive creams later to get rid of the scars completely. This is an awesome product to begin with. By the way, I’ve gotten awesome results in so little time even though I’ve only used it 2 times a day instead of three like it says. But do follow the directions.


Abigail July 20, 2010 at 8:09 am

I have been using Mederma for the past 1.5 months, 3-4 times a day as directed. I had my gallbladder removed and have several scars on my stomach from it that are red and raised. I have noticed ZERO difference despite my scars being new – just 3 months old when I started using the gel. I am very disappointed with the results (at least, I am assuming that is “new” because they do not actually give a definition of a new vs. old scar). I know I am supposed to continue for 8 weeks to get maximum results, but I will likely continue until I use up the tube (I probably have another 2 months worth). I want to to make sure none of it is wasted since I shelled out a decent amount of money for it. However, viewing the results to date, I am not expecting much of a difference.


Cynthia Sanford July 27, 2010 at 5:52 am

I have a fresh rug burn and started using mederma the day after I received the burn and applied it about twice daily and have noticed a significant difference in the burn hardly noticeable(within a weeks use) = now I did use mederma along with bio oil at times, I am satisfied with the results.


gabriel July 28, 2010 at 5:57 pm

about 3 months agao i had plastic surgery on my eyelids. about 6 weeks ago i started applying mederma 3 to 4 times a day. i have not noticed any difference. i would not recomend this product.


Wanda July 29, 2010 at 1:40 pm

Mederma does not work. I used to work at the call center for Mederma, and everyone there knows it doesn’t really work.


Anna August 28, 2010 at 3:46 pm

I just got a knee surgery, and I started applying Mederma 2 weeks after the surgery. It works on me :)


admin September 15, 2010 at 5:54 pm

Cool – it seems a lot of people commenting here like it! Good to know for anyone considering using Mederma.


Donielle September 11, 2010 at 9:35 pm

I had a breast reduction at 16. The scars keloided shortly after. I began using mederma and it has completely transformed my scars. I am now 25 and the scars are softer, smoother and barely visible. I haven’t used the product as it was recommended but when I do, the results are almost instantaneous. The scars used to be so thick, they protruded through my clothing. Also, I would experience pain and some numbness, this product has relieved both. I can say with certainty that within another year, the scars will be gone completely. I am considered a very beautiful woman but owe my self esteem to Mederma. It also has helped with any stretch marks, new and old scars.


admin September 15, 2010 at 5:45 pm

Thanks for sharing, Denielle! Wow – glad it worked so well for you. So, you’ve also had success using this on stretch marks? I was under the impression Mederma was best for raised scars, where as stretch marks are indented…


hannah November 17, 2010 at 12:38 pm

I just recently purchased mederma 2 days ago and have already seen a slight change in my moderate acne scars. They appear lighter and i’m happy about this. If scars are getting lighter after only TWO days i cant wait to see how they look in a month or two. yes, it makes the face peel a bit, feel tight, and itch but pain is beauty right? lol. this product may not work on everyone, but ask a dermetologist for some tips if needed. Good luck=)


kbk November 19, 2010 at 9:41 pm

Just got scar revision surgery done to remove a keloid scar, so for new surgery scar my plastic surgeon told me to rub mederma on it a few times a day and massage the scar so the tissue stays soft and doesn’t harden. So just started using it and hopefully it works, I go back in Jan for a follow-up, if it doesn’t work then I will go on to get Silicone sheeting and Collagen injections. Merderma is of course the least expensive option so keeping my fingers crossed.


Diana November 24, 2010 at 7:41 pm

Hi, I have burnings and some turned into keloid. I have tried the silicon sheet, it didn’t worked. i have tried an oil of “rosa mosqueta” it was useful for feeding the skin but it did not helped on the redness or on the keloids. I’ve used “aloe vera plant” directly in my skin, it helped better. I tried a lot of creams including dermafix and kelo cote. None of them lightened up so much and vanished some keloyds I have/had in my armsand breast. In my face is a litle slower although I can see results. i did not waited weeks or months to see results. I’ve bought it last tuesday, today is thursday. I’m hopeful as I’ve never been before. I think it can variate from person to person, but in my case works.
I’m also carefull with my nutrition, I think it’s important too.
Sorry for any mistake, english is not my first language.


C. Smith January 6, 2011 at 12:05 pm

I’ve been using Mederma for the past two weeks and I’ve seen a small decrease in the scars.. The new ones I expect to be near gone and the old ones to at least fade at the rate it’s working for me.


John March 2, 2011 at 1:35 pm

I can say for myself that it works for acne scars. I feel that it works better on the face b/c the faces has more pores(I might be wrong about that) I didnt aplly it 3 times a day, I just applied it at bedtime b/c during the day I have tp wear acne cream. After my acne went away, it left me redness on my face, and after using mederma for 6 months, the redness want away and the scars became VERY unnoticiable. Just be patient.


Jonah June 3, 2011 at 1:56 pm

Hi i am 14, i have a lot of scars from falling, bites burns, etc… I am a picker sadly, and i’ve had these scars forever. I am sooo tired of them. I just bought mederma last weeks and i am still hoping for better results. Any other oils or remedies i can use?


Lati June 13, 2011 at 7:43 am

Just had knee surgery 3 weeks ago, started using Mederma last week. The scars are still very red as they are pretty fresh, but I’m hopeful that it will work.

Although I am curious, if the main active ingredient is some onion extract, would it help to eat more onions? or rub them on the scars topically?


Tiffany June 17, 2011 at 7:12 am

I have one scar around close to my ankle really thin but one inch long… And another one close to my need like 2 inches long… And one I got scratch by on my cheek. Another one close to my eye because I got hit by a basketball.. I used up&up on the scar on my knee and ankle… And I can still see a little of the one by my knee but the one by my ankle is gone! Now I’m using Mederma and the one on my cheek faded a little after 3 days.


Tiffany June 17, 2011 at 7:14 am

Oops I meant knee and I used the up&up for about only 3 weeks


Mina July 14, 2011 at 8:51 am

I’ve used mederma on a fresh scar caused by very hot cooking oil on my wrist- applied 2x a day for a couple of weeks- it’s barely visible- better than before. I’m now using it on an old scar on my right arm- be patient. It’s tedious to be applying 3-4x a day, so just do morning and night if you forget.


Shea July 21, 2011 at 9:04 am

Hi! i’m 14 and have several stretch marks on my thighs and butt, i have some old stretch marks, and new ones. i’m considering using Mederma, but i’m unsure whether this product will work for me. What do you guys think?


Candace May 19, 2012 at 7:26 pm

Hey I am The SAME WAY Did This work for Yu??


James Byrd August 14, 2011 at 7:53 pm

I’ve been using it for awhile now, scar gel when I’m inside and the cream for when I’m outside, and pretty regularly applied 3 times a day. I haven’t seen much improvement at all on old acne scars.
Maybe I’m being impatient because it says 3-6 months for old scars, and I’m willing to go that long and futher even if it means buying several tubes, but what I’ve noticed from these comments is that a lot of these people used the treatment right after getting a scar. It could be the gel that did the trick OR that could have tricked them by just the natural healing their body would have done anyways. I’m sure the gel could have helped by keeping in soothed, but other than that I’m a little weary on the effects I should expect. I can come back in like a year I guess and tell you what the results are… My acne has naturally gotten under control (I get a small few every now and then but who doesn’t… other than the lucky ones.) and I plan on getting ride of these scars, and Mederma seems to be the only thing that I can use without upsetting my skin. That’s a bonus I must say out Mederma! I also have been using a pomegranate night treatment mouisturizer (which has worked great for me for so long) over the acne gel at night and my skin looks absolutely amazing in the mornings. Just thought I’d mention that because I actually noticed that when I stopped using harsh acne treatments on my skin that that was when my skin cleared up. A suggestion: try something natural in your skin regimine.


James Byrd August 14, 2011 at 7:56 pm

And by “awhile” I mean around an average of 2 months (because I started using the SPF cream sporadically, then often, then got the scar gel and used that with the cream daily)… so I should probably not complain. I’m patient, but I can be impatient when I don’t see immediate results. But, I’m willing to wait this time. I’ll try to remember to get back to everyone!


Art August 20, 2011 at 3:33 pm

I’m 22 and I just got over the chicken pox. I used to always get compliments on my skin, and now my face looks like a wreck. I have big deep scars all over my forehead, cheeks and nose. I just started using Mederma about 3 days ago, but its obviously too early to see any results yet. I really hope this product helps.


didi October 3, 2011 at 12:48 am

i had a bike accident and ended up with alot of wounds and cuts on my hands, knees and face and i started using mederma, its been almost two months and i have not noticed any improvements, except it made my scar darker. i am not satisfied with this product and i would never recommend it to anyone.


Jessica October 26, 2011 at 5:18 pm

I had a keloid removed from my chest, the doctor recommended using mederma after the stitches were removed. I used the Mederma for about a week as instructed and the scar is swollen and painful (looks worse than it did before I started using the Mederma). I may just be allergic to the gel- but I am definitely discontinuing use!


Jackie August 19, 2012 at 12:02 am

The exact same thing happened to my chest keloids! I have three, and they got so incredibly itchy during the day when I put my scar gel on. One of the small one grew bigger noticeably. So I would not recommend Mederma for people with chest keloids.


Jasmine November 7, 2011 at 10:09 am

Mederma has worked for me numerous times but the key is to remember to apply it several times a day…persistence is key!


Traci Hanton November 21, 2011 at 9:57 am

Question do I stop using mederma after I’m please with results or do keep using it? Do mederma treat acne or just the scars left behind?


Jo January 21, 2012 at 8:34 am

My c-section scar (9 months old) has started to become keloid (which is kind of uncomfortable). I finally went out an bought the Rite Aid version of this product and started applying it the other day. Since I have started using it for two days now I have noticed the scar looking better already. It is not as red or raised and it does not hurt as much. So far, this product has worked for me and I am happy about it. I think everyone is different and you probably won’t know if this product will work for you unless you try it.


Amber January 22, 2012 at 12:58 am

I have a 2 inch scar across my nose. 5 days after the accident, my doc was taking out my stiches and told me to get Mederma. Its been a month since my accident, and using mederma 5x a day…i have amazing results. This scar is very very noticable…but now, it’s hardly there. Most people don’t recoginze it unless i piont it out. My husband and co-workers say that it does not look like i was just in an accident. This stuff really works. I know from now on, as soon as i get a scare, i will be using mederma. There is hardly a colored scar, the scar is not “raised” from the skin like other scars are either. I have a 2 other scars from prior surgeries on my body and never used mederma on them. Those scars are very noticable and there…my nose, it’s almost as if nothing ever happened.


KittieL February 15, 2012 at 6:24 pm

My mom recommend this Scar Serum and the first thing I noticed is that it
does Not irritate my skin (like Mederma, etc.) !! This was a major plus. It is called the Dr Max Powers Scar Serum, and she ordered it online.

WOW !!! I discovered that it actually worked !! It has all but made my 10 year old scars disappear !! (With the new scar I couldn’t be sure if it was going away on it’s own, but making the old scars disappear is proof positive that this scar serum does work) !


SHandyj June 24, 2012 at 9:42 am

Did it really work? I have really old scars and I’ve been using different scar remover and it all didnt work..


Shannon March 26, 2012 at 7:28 am

I recently had a divinci laprascopic heysterectomy and started using Mederma as soon as my insicions were healed over, it has been three months and the scars are still dark and I have noticed absolutely no difference with the Mederma, a complete waist of $40.00 if you ask me.


yesenia May 21, 2012 at 8:30 am

Hello! I’m 13 and I have several stretch marks on my love handles, breasts, and thighs and I NEED to get rid of them ! I hate them D: Does Maderma really work? I don’t want to waste the money I have been saving up. Please let me know.


Jeanine July 21, 2012 at 6:40 pm

I just ripped my leg open in a yacht race about a month ago. Following Mederma’s package instructions along with a pharmacist’s advice to start as soon as the scabs fall off the wound, I swear it appears my scar looks worse and seems to take longer to heal using Mederma than just leaving my body to heal naturally.
If the product’s main healing ingredient is Allium cepa, an onion extract, then I think eating an onion-heavy diet along with homeopathic Allium cepa pills would help my body heal better and quicker than this silly and expensive gel. Go to the source, not to the band aid.


madushi perera September 20, 2012 at 3:56 pm

hi,im from almost i used Mederma Scars Gel .only 25 days still.but i can see good result.I have old using it 3 times per day.and i want to know how much time do we have to keep the gel in one time?thank a lot


Cassy February 11, 2013 at 8:50 pm

If mederma doesnt seem to work then try cicatricure you can find it at walmart.It is made in mexico.It helps removes scars and some say its good for strech marks to.My sister has longer time then me useing it and its working.It will take time for the results but its worth it!:)


Karen February 19, 2013 at 6:55 pm

I’ve been using this product for about 8 weeks now and I have to literally search
to find my stretch marks. I thinl its safe to say it works, just make sure
you’re using it as directed. Ill be purchasing a second bottle soon.


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