What is Peter Thomas Roth Potent-C Power Serum?

A vitamin C serum with 20% THD ascorbate, 3% vitamin E, and 2% ferulic acid, designed to brighten skin and protect against environmental damage.

Is Peter Thomas Roth Potent-C Power Serum worth it?

The gurus mostly approve it, but with enough reservations to keep it in the middle at a Guru Score of 72%.

What is Peter Thomas Roth Potent-C Power Serum's Guru Score?

Peter Thomas Roth Potent-C Power Serum holds a Guru Score of 72%. That is our read on how warmly the experts talk about it, based on the verdicts of 6 expert reviewers we have collected.

Who is Peter Thomas Roth Potent-C Power Serum best for?

Peter Thomas Roth Potent-C Power Serum is generally suited to mature skin.

Peter Thomas Roth Potent-C Power Serum: a Guru Score of 72%

What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored

Dr. Jenny Liu

321k subs

~Yay

"Peter Thomas Roth has a really creamy vitamin C that I really love."

All 4 takes from Dr. Jenny Liu

Dermatologist updated Morning Skincare Routine | Tips for winter and layering skincare

"The one that I'm currently using is from Peter Thomas Roth, 20% THD ascorbate, and is definitely a very creamy texture, so really great for those who have dry and sensitive skin. It's almost like a light lotion texture. When it comes to THD ascorbate vitamin C's, they're not as finicky, they're a lot more stable. In fact, that lipid solubility actually enhances penetration, and some studies have shown that it actually absorbs much more readily than pure vitamin C. So even if you were to apply it after another watery serum, if it's a thicker formulation, chances are it's probably getting into your skin just fine."

Dermatologist's Favorite Sephora Skincare & Haircare Products | Dr. Jenny Liu

"I have absolutely been loving and obsessed with this, it's from Peter Thomas Roth, their Potent-C Power Serum. This contains 20% THD of lipid-soluble vitamin C, which has become my favorite vitamin C recently this past year, especially to use in the winter time. I did a deep dive into why this is such a nice one for those with dry sensitive skin or to switch to during the winter or for anyone who has a hard time tolerating pure vitamin C. This product is lovely because it's got a power of lipid-soluble vitamin C, it's fragrance-free but it's also very nourishing and creamy. It's almost like a light lotion, slash cream texture, so very hydrating. So great for those again with dry and sensitive skin looking for a good antioxidant serum to use in the morning in the winter time, so that way your skin continues to get the benefits of antioxidants, brightening benefits and helping with anti-aging concerns while reducing irritation. And with the creamier texture, if you do use like other watery serums, I think it's fine to layer this vitamin C."

Ultimate Sensitive skincare guide for winter from Dermatologist | Dr. Jenny Liu

"The Peter Thomas Roth 20% THD ascorbate is what I'm currently using. It's very creamy, almost like a light lotion, and I absolutely love it. THD ascorbate is better tolerated for sensitive skin and gives great brightening and antioxidant benefits."

Ozempic Face Is Real | Dermatologist Explains How to Prevent & Fix It

"Peter Thomas Roth has a really creamy vitamin C that I really love."

No BS Beauty

89k subs

~Nay

"I'm not repurchasing it at this point. It has a hefty price tag and the brand's also not cruelty-free. This one's a tetrahexyldecyl ascorbate vitamin C serum, which is a derivative. It's got vitamin E, squalane, ferulic acid, and turmeric. I've had this one for quite some time."

All 2 takes from No BS Beauty

Peter Thomas Roth Skincare Best Dupes & Alternatives to Their Most Popular Products

Best & Worst Vitamin C Serums of 2023

"Peter Thomas Roth, I haven't been enjoying this one. This one's a different type of vitamin C, it's not ascorbic acid, it's a derivative. So just keep in mind the derivatives, they've been studied a little bit, but more studied by the manufacturers of each derivative than actual peer-reviewed journal studies like SkinCeuticals did. Some of them might be great for one person and not work at all for the next. The derivatives, I'm not so sold that those are totally gonna do the trick."

AliceintheRabbitHole

59k subs

~Mixed

"I used the Peter Thomas Roth Potency serum, which is twenty percent THD ascorbate vitamin C. Even at the end of this trial I do like it, and I get the feeling it's stronger, but it's a lot more expensive and it also kind of smells funky."

All 2 takes from AliceintheRabbitHole

K-Beauty vs High End Skincare: 6 Weeks Led to THIS?!?

Ulta 21 Days of Beauty: My Picks & Skips! (Fall 2024)

"The Peter Thomas Roth Potency Vitamin C Power Serum isn't actually my personal favorite vitamin C, I still think something like Geek and Gorgeous is a very good option, but I get that some people might be looking for a vitamin C product in this sale, and this is a pretty good derivative vitamin C serum, it is THD ascorbate, which is very hard if not impossible to find in K-beauty. This is still expensive, I think that's the price to pay for it, no reason to pay full price."

Dr. Vanita Rattan

1.23M subs

~Yay

"It's got a bunch of hyaluronic acid which is good for us, they've also put in here turmeric which is anti-inflammatory, and another interesting ingredient is ginseng root extract which we use a lot in Korean skincare and it has many anti-inflammatory benefits and anti-aging benefits. So I would actually recommend this product. It does have a strong smell to it but the ingredients are effective, it's in the correct packaging, it's an air-safe product, not going to irritate the skin, it's anti-inflammatory. He's been quite interesting with his additional ingredients in the formula so he's come out of the box a little bit, so I like that. The only downside of this product is the price. Eighty-one dollars is in my book very expensive, but if you can afford the budget then this is one that I like."

Tea with MD

113k subs

~Yay

"The Peter Thomas Roth Potent-C Power Serum is 20% vitamin C in the form of THD ascorbate, 3% vitamin E, and 2% ferulic acid. I really like because it comes out like a hydrating serum. I can just use this in place of a moisturizer and it offers absolutely zero irritation. I love THD ascorbate as opposed to L-ascorbic acid because my sensitive skin just loves this stuff and I can use it every day and not have any issues. You can see how silky and lightweight this is, it's perfect for layering, and it's just a really cosmetically elegant formula that causes zero irritation or stinging."

All 4 takes from Tea with MD

Dermatologist Explains: Vitamin C 101 | Dr. Joyce Park

Ultimate Summer Skincare Transition Guide | Dr. Joyce Park

"The Peter Thomas Roth Potent-C Power Serum is THD ascorbate based and also a serum, and it's so good. I love it."

Ultimate Black Friday Cyber Monday Skincare Sale Picks | Dr. Joyce Dermatologist

"As a serum it's almost like a lightweight cream. I really like this texture especially for fall and winter when my skin is dry, especially during pregnancy my skin is super dry, and it forms a hydrating base to the point where I don't usually need to use moisturizer afterwards. [...] I've been using this personally as my vitamin C during the winter because it's very hydrating and very moisturizing."

Part 2️⃣ of what this

"This is from Peter Thomas Roth and it's the Potent-C Power Serum. This has 20% of THD ascorbate which is my personal favorite type of vitamin C. It's lipid soluble, it's very stabilized, it's less irritating for my sensitive skin than L ascorbic acid which is in a lot of other vitamin C preparations. It also has 3% vitamin E antioxidant and 2% ferulic acid. I like it because it comes out as a serum as opposed to like a liquid or an oil which a lot of other vitamin C's come out as. [...] It's very hydrating, it's not irritating at all, and I've been really liking it as a base. [...] Vitamin C has a whole host of benefits, it helps to brighten, neutralize free radical damage from the sun. [...] This has been a really cool new product that I've been liking."

The Budget Dermatologist

723k subs

~Yay

"From Peter Thomas Roth, which has a whole line of very splurgeworthy products, this vitamin C serum was my product of the year from 2023, the product that I splurged on most and got the best feedback from my followers. It's a little pricey but you can get it for 15% off with my code. It's better tolerated by a wider range of people and skin types than traditional L-ascorbic acid types of vitamin C serums. Typically, better tolerated may mean weaker or less results, but with this formulation here, you might actually get even better results. It's really a splurge-worthy product to save your skin from irritation but still max out on your skincare goals. This one has THD ascorbate in it, which is the inactive form of vitamin C that gets converted to L-ascorbic acid on your skin, very similar to the concept of retinaldehyde, which gets converted to retinoic acid on your skin. It has a dose of vitamin C THD ascorbate at 20%, which is a lot, but because it's more gentle, you can actually tolerate a higher dose. If we're talking 20% L-ascorbic acid, which is pure vitamin C, that would be a very high risk of irritation, but not with this. You cannot compare those apples to apples."

Sponsored

All 9 takes from The Budget Dermatologist

How To Supercharge Your SPF And Get Glowing Skin!

BUDGET Skincare Swaps! | The Budget Dermatologist

"This luxury vitamin C serum, I actually love this, it was my 2023 product of the year because it's so amazing. It has 20% vitamin C in the THD ascorbate form, which is one of my favorite types of vitamin C because it's more stable and less irritating to the skin. It gets better penetration than L ascorbic acid types of vitamin C. And this also has vitamin E and ferulic acid in this product, which work together synergistically with the vitamin C to help it do its job better. This one is truly an amazing, unparalleled product."

My 2023 Skincare Product of the Year! | The Budget Dermatologist

"I have found a handful of ones that I do love though but none are as good as this one by Peter Thomas Roth from the Potent C line. It's a vitamin C with THD. This is unmatched, it is unparalleled, it has really been a GameChanger in my personal skincare routine, just revolutionized my routine to be honest. This product will help you hold on to your collagen, preventing breakdown all the while building new collagen to reverse signs of aging. It's going to fade dark spots and even out your skin tone. It will smooth out your fine lines and wrinkles. It can brighten dull skin and it gives you a massive amount of antioxidant protection from free radical damage of your collagen from UV light and environmental stressors. Think of this like an invisible shield on your skin. It has the trifecta of antioxidants. Research shows that these three together work better than separately so they have synergy because they will help stabilize the vitamin C and help it do its job more effectively."

Answering Your Top 5 Skincare Questions! | The Budget Derm

"I also love the Peter Thomas Roth vitamin C that has the THD sorbate in it. It is a lot more expensive but it's another great option."

BEST Of Anti-aging Skincare Deals | Black Friday 2023

"My number one vitamin C serum pick that is superior to all the others out there in my opinion right now is Peter Thomas Roth Potent-C Power Serum. This is better than the SkinCeuticals C Ferulic. If you have sensitive skin or if you have tried these L-ascorbic acid type of serums and are just not getting results, this is your new Holy Grail. The sole reason this is my favorite product is because this has the THD form of vitamin C, so that's tetrahexyldecyl ascorbate. It is the most stable, it is the most tolerable for the skin, and it has the best penetration. This one has the trifecta in it: 20% THD vitamin C, 3% vitamin E, and ferulic acid. All of these work together to make the vitamin C do its job or work better, just synergy there with all of those. THD is expensive to formulate at baseline. There are not a lot of other good dupes out there, so get this on sale. It is the best time to be able to afford one of these more pricey, well formulated products."

Shop with me for the BEST Vitamin C Serums!! | The Budget Dermatologist

"What makes this unique is they have the Tetra hexadecile sorbate form of vitamin C in it, which is the inactive form that I recommend of all the long list of inactive forms. The other thing I love about this particular one is it tells us exactly what's in it: twenty percent THD, which is the highest of the high, you don't want to go higher than that. It has three percent vitamin E and two percent ferulic acid. If you're wondering if inactive forms are any good or do the same as the active form, the answer is actually yes. It can be extremely beneficial for the skin because THD is lipid soluble, so it actually penetrates your skin better than L-ascorbic acid, and it's more stable so it lasts longer in your product before it breaks down. It's just not as irritating on the skin and it works. So THD if you're looking for a product that doesn't have L-ascorbic acid in it, go for one with THD. This one is expensive, it's one hundred and five dollars, so get it on sale when you can."

How To Pick a Budget Vitamin C Serum For YOUR Skin! | The Budget Derm Explains

"This one is one of the more expensive products I will recommend on my channel but it is unmatched and it is that good. This has 20% THD ascorbate in it, it has 3% vitamin E in it and 2% ferulic acid, so I consider this your THD swap of the Skinceuticals CE Ferulic. It also has a trifecta and it has a very transparent list of the exact percent of each of those three ingredients in it, which is incredible. It's so frustrating how hard that is to find in skincare where they actually disclose how much, what is the percentage of these, because we need to know so we can go up or down based on how our skin reacts. I love that about the Peter Thomas Roth formula. Overall a really soothing formula, very nice product, unmatched, totally worth the money if you are going to go hard into Vitamin C in your skincare routine and you really want the best benefits. [...] 20% sounds like a lot if you're trying to compare 20% L-ascorbic acid to 20% THD, they're not the same because this has to undergo a conversion to get to this, so even though this is higher I don't think you are going to get the same level of irritation with 20% this versus 20% that."

Black Friday Skincare Sales! | The Budget Dermatologist’s Top Picks

"The Potency line comes with a dedicated vitamin C serum. This one is 20 percent THD ascorbate, the stable form of vitamin C, three percent vitamin E, and two percent ferulic acid, so it is strong. Watch out if you have never used vitamin C serum before. This is a really strong one. This is going to be for seasoned vitamin C users or people who have significant hyperpigmentation that really want to do a good job of fading that. So I love this one, but for me personally I am trying to get away from using a dedicated standalone vitamin C serum in my own routine, so it is not on my super short list from this collection. But it is a very solid product if you are looking for a dedicated vitamin C serum."

Vitamin C Serum HACK! 3 Easy Steps to Make Vitamin C Work For Your Anti-aging Routine!

"This has 20% THD in it with 3% vitamin E and ferulic acid. I have not found any other product as strong as this or as well formulated as this on the market, and there are literally no dupes out there for this product."