Why La Roche Posay Serozinc ISN’T Worth The Hype

by Gio


I love it when skincare is stripped bare.

Take away all the unnecessary layers and extra frills and leave in only the stuff that works. You know, the active ingredients that do the heavy lifting.

Less chance of irritations that way. And wading through the label becomes a breeze.

La Roche Posay Serozinc is stripped like that. All is left with is water, zinc sulfate and salt (yes, Sodium Chloride sounds posher, but it is still table salt).

I know what you’re thinking. Why should you splurge on a tube of water, salt and zinc?

Because zinc is a miracle cure for acne. Or so they say. But is that true?

Is Zinc Sulfate An Effective Treatment For Acne?

Well, there’s plenty of proof that zinc gluconate can get rid of acne. Studies have shown it can:

  • Kill the bacteria that cause acne
  • Soothe the redness associated with acne
  • Reduce excess oil
  • Reduce keratin (the protein that glues skin cells together), preventing breakouts

BUT… there’s a catch. It only works when taken orally. Supplements, that is.

But Serozinc ain’t a supplement. It’s a spray on toner.

And it doesn’t use zinc gluconate. It uses zinc sulfate.

So, does that mean it works better? Nope. The opposite, actually. It works worse.

I’ve found a study that compared zinc sulfate with a placebo. The results? No difference. Actually, there was a difference. Zinc was more irritating.

Another study found that 5% zinc sulfate can slightly improve acne. But, it didn’t work nearly as well as the 2% tea lotion it was compared to.

So, I wouldn’t say that zinc sulfate is completely useless to treat acne. But I still wouldn’t use it. There are much better treatments out there.

Thinking of trying La Roche Posay Serozinc? Read this first #skincare #acneClick to Tweet

Is La Roche Posay Serozinc Worth The Splurge?

Ok, so Serozinc sort of failed its theory test. But, what about its practice test?

I’ve been using it for a few weeks even though my skin isn’t particularly oily at the moment. Just a bit shiny on my t-zone. That’s where I also get the occasional bout of blackheads.

Even though I’ve been spraying Serozinc on my face every morning, I can’t say it did anything for me. It felt refreshing on the skin, which is something I’d definitely appreciate a lot in summer. Not so much now, you know? But, apart from that, I can’t report any other benefits. 🙁

Even so, I don’t think it’s totally useless. Lots of people are using it with good results. After all, zinc does help with acne, so I tend to believe zinc sulfate helps acne a little bit too.

But there are much better treatments out there. If you switch Serozinc for a treatment with salicylic acid, benzoyl peroxide or sulfur, you’ll see much better results, and much faster too.

So, nope, not worth the hype. I’m giving this a pass, sorry!

Pros: Price & Availability: £7.20 at Escentuals

La Roche Posay Serozinc Ingredients: Water, Sodium Chloride, Zinc Sulfate

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Hannah November 16, 2016 - 4:23 pm

Speaking about sulfur and zinc,they both will help your psoriasis. The zinc if u take it orally,and the sulfur if u apply it topically. U can buy sulfur soap and use it on your psoriasis and it’s supposed to have good results on making it go away. I don’t have psoriasis,so I cannot speak from experience but I’ve known people who do have it. Also, dead sea salts and Epsom salts if u soaked in it can help and I’ve heard that apple cider vinegar applied topically gets rid of a lot of the flakes,at least according to this guy who attests to how it’s helped him with his severe psoriasis,on his blog Psoriasis Blob.
I’m guessing that the AVC works so well because AVC contains glycolic acid which is why I believe it works so well on helping some people who use it for acne. In fact, sometimes dermatologists prescribe glycolic acid to their patients with psoriasis and it’s supposed to be really effective,so surprisingly I’m shocked it’s not a common known treatment for that skin condition. Future Derm swears by glycolic acid creams for making her psoriasis go away.
Improving your gut heath and avoiding certain foods is a little-known way to help psoriasis, because most dermatologists are only taught to treat the symptom,and not the root cause. Your psoriasis for example,could just mean that you have a gluten intolerance so gluten just aggravates it rearing its ugly head.

Gio November 20, 2016 - 9:10 am

Hannah, thank you so much for your helpful and thoughtful comment. I couldn’t agree more with you, especially on how doctor treat only the symptoms. I’m sure people with psoriasis will find your recommendations very useful.

Crude Curator September 3, 2017 - 7:11 pm

Oh…how I wished I have read this article before ordering it.

Gio September 8, 2017 - 9:37 pm

Crude Curator, 🙁

Thamyres Castro May 17, 2018 - 5:07 pm

I’m from Brazil and the marketing over this product in here is HUGE. So I bought it. And God knows how sorry I am for that. It doesn’t work at all!!

Gio May 18, 2018 - 3:05 pm

Thamyres, oh no!! It’s so unfair you can’t get a refund when something doesn’t work.

Joni Lawrence July 10, 2018 - 5:07 pm

If I’d ONLY read this last night. I’ve been working to repair the moisture barrier on the right side of my face, which was damaged by a nefarious manuka honey product. It’s been WEEKS of redness and irritation. I decided to step it up with a water-based “essence” with hyaluronic acid and finally an moisturizer/occlusive. I worried essences might irritate with essential oils, so I decided to give the Serozinc a try. Serozinc + hyaluron + weleda skin food = a horrible red rash!!! I’ve tried shea butter, LRP cicaplast, squalene oil (was actually having decent results with that), NIOD’s modulating glucosides, super spendy Chuda cream (a sample thank goodness), LXMI nilotica butter (spendy special shea butter), homeoplasmine, the list goes on. Any tips would be GREATLY appreciated. Considering a dermatologist, but I suspect there’s no pharma treatment.

Gio July 21, 2018 - 9:30 pm

Joni, oh no! So sorry to hear that. Definitely stay away from anything with essential oils. When your skin is in this state, you just want to use a gentle cleanser and a fragrance-free, irritants-free moisturiser with barrier repairing ingredients like Paula’s Choice Clinical Ultra rich Moisturiser, Paula’s Choice Calm Redness Relief Moisturiser or The Ordinary Natural Moisturising Factors. Hope this helps.


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