Peter Thomas Roth | Potent-C™ Power Serum | ⭐ Flexiology.Store Recommended
Original price was: $95.00.$89.25Current price is: $89.25.
🌿 Expert Tip: Handpicked for natural health, wellness & beauty.
Price: $95.00 - $89.25
(as of Oct 03, 2025 16:36:12 UTC – Details)
From the manufacturer
POTENT-C
Unleashes the strength of THD Ascorbate Vitamin C, a scientific breakthrough ingredient 50 X more powerful than traditional Vitamin C.
Potent-C Power Serum
Brightening Vitamin C serum is packed with 20% THD Ascorbate, an advanced form of Vitamin C that is 50 times more powerful than traditional Vitamin C. The high concentration helps defy 7 signs of aging* at once, helping to visibly improve the look of fine lines, wrinkles, uneven tone, loss of brightness, loss of firmness, uneven texture and dehydration. Boosted by potent antioxidants of 3% Vitamin E and 2% Ferulic Acid, this creamy serum is further enhanced with Turmeric, Ginseng, Jojoba and Squalane, offering a complete solution for brightening and anti-aging concerns. Fragrance-free.
*Based on a 4-week consumer perception study on 33 women ranging in age from 49 to 65.
Key Ingredients
20% THD Ascorbate
High-potency, brightening Vitamin C that helps defy 7 signs of aging at once.
3% Vitamin E and 2% Ferulic Acid
Provide antioxidant benefits and help boost Vitamin C performance.
Turmeric, Ginseng and Squalane
Improve the look of uneven tone, dullness and dehydration.
Defy Signs of Aging In 7 Days
BEFORE
AFTER 7 DAYS*
*Unretouched photos. Individual results may vary.
BEFORE
AFTER 7 DAYS*
*Unretouched photos. Individual results may vary.
Suggested Usage & Study Results
Apply to clean, dry skin. For best results, use twice daily on face and neck with continued use.
In a 28-day consumer perception study with 35 female subjects, users agree they saw an improvement in wrinkles, firmness and brightness in 7 days.
Is Discontinued By Manufacturer : No
Product Dimensions : 27.5 x 15 x 30 inches; 1.06 ounces
Item model number : 15-01-049
Department : Unisex
UPC : 670367008775
Manufacturer : Peter Thomas Roth
ASIN : B00YP4I93C
Best Sellers Rank: #43,252 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #862 in Facial Serums
Customer Reviews: 4.3 4.3 out of 5 stars 647 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Customers say
Customers report that the serum gives their skin a healthy glow, with one noting immediate improvements on their forehead and nose. The product receives positive feedback for its texture, with customers appreciating its creamy feel, and one mentioning it’s suitable for sensitive skin. While some customers find it half the price of Sephora, others consider it expensive, and there are mixed opinions about its smell, greasiness, and value for money. Customers disagree on the product’s effects on skin tone and irritation.
🌿 Expert Tip: Selected by our Flexiology Experts for quality & value.
⚠️ Disclaimer: Information is for educational purposes and not a substitute for medical advice. Consult your physician before use. Flexiology.Store is not responsible for any adverse effects.
13 reviews for Peter Thomas Roth | Potent-C™ Power Serum
MAECENAS IACULIS
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Mary F. –
I had bad effects with other Vit C serums, but this one is perfect for me
I’ve TRIED other Vitamin C serums, but I’ve had bad effects from many of them (such as orange skin and orange break-outs). This product feels very good, makes my skin look bright and slides on just as a serum should. It’s pricey, but because of break-outs with other Vitamin C serums, it’s worth it to me.
My2cents –
I notice improvement
So I’ve purchased the Peter Thom’s Roth Potent C Power Serum twice now and love the results I see in my mirror, even skin tone for the win. It’s not drying and plays well with other products, the scent was much more noticeable on my second purchase though. As much as I love the product I don’t think I can justify the price as is the case with many skincare products lately, it’s just over the top.
KindlingE –
Good Product
Works well, I use it every other day to avoid skin irritation.
Eyb –
Great for sensitive skin
Update (took off 1 star, so now 4 stars): after using this serum religiously morning and night on both my face and neck for 5 months, I did notice my skin tone looks more even and brighter (maybe 5 to 10% improvements). I didn’t notice any lightening of my hyperpigmentation, dark acne scars or sun spots.I used 3 pumps to cover my whole face and neck day and night. So I ended up burning through 4 bottles of this vitamin C serum. It’s interesting that many YouTube MDs always comment on THD ascorbate as being oil soluble and can penetrate deeper into the skin. However, there aren’t that many studies to prove this. I read some chemist blogs and the conversion of THD ascorbate to ascorbic acid is only 16% in cells. This means you are getting only about slightly over 3% equivalent of ascorbic acid in your skin. I’m guessing that’s the reason why I don’t get the dramatic results compared to the Revision brand with 30% THD ascorbate (close to 5% equivalent in f ascorbic acid conversion) will continue to search for other vitamin c derivatives since my skin can’t tolerate the L ascorbic acid formulations. My next one to try is the DS laboratory with the ethylated vitamin c. I still give this vitamin c serum 5 stars and it’s a good beginner vitamin c serum to try if you have sensitive skin.Original review:I tried so many different types of vitamin c, Cerave, Skin Ceuticals, Glow Recipe, Mad Hippie, 100 percent pure, L’Oréal, Neutrogena, No7 capsules, Drunk Elephant. All of them either burned my skin and caused rash from the L-ascorbic acid formulations, or they are not potent enough for me to see any differences. The only vitamin c that’s comparable to this one is the Revision THD 30% which is about $35 more than the Peter Thomas Roth brand. While I do love the higher % from the Revision and it does not cause any irritations with much faster results, the Revision brand’s new packaging is so horrible and I’m not able to get every drop of the products out from the horrible tube design.I love the PTR brand because the packaging is much easier to dispense every drop of the product. It also doesn’t pills and layers well with other products. No artificial fragrances. It does have a natural vitamin C smell and it smells like iron rust. It’s a creamy lotion like consistency like the Revision brand I love with cheaper price tag. The only down side is you see good results but not as fast as the Revision brand since it’s the 20% concentration.The other one I tried was the Herbivore Vitamin C serum that has 15% THD ascorbate. I would say this one is a pass for me because not only the concentration is lower, also the tumeric scent comes off quite strong for me when you first apply it on your face. Also the bottle is transparent not blocking off the light (I’m just being OCD at protecting my vitamin C serum).
Jen Oakes –
Like the product but it seems the bottle isn’t full
I like this product although it does smell like doggie bacon treats . I have noticed a smoother more radiant complexion. However, the bottle doesn’t seem to be full. This last bottle I’ve had less than a month and it’s gone already. I use a droplet each day. Sometimes twice a day. I’ll be ordering directly from PTR going forward.
karin –
Nice creamy feel
wonderful creamy feel – not thin and watery like some serums. Whether it works to restore skin cells remains to be seen with a little time. But the “feel” of it on your face is very moisturizing.
Mary –
Wow
Oh my goodness this feels so good on my face. Yes it does have a different kind of smell but it didn’t last long.
CBrock –
Horrible Smell
I too purchased due to the escalating cost of the premium medical grade brands on a recommendation from a dermatologist. This is the most foul smelling product for the skin I have ever smelled. Perhaps I received a spoiled bottle not stored properly. I have no idea but I returned it. I put it on my face thinking the smell would go away in a moment like other vitamin c with Ferulic in it. After 5 minutes I had to wash my face and start over. I could not stand the smell any longer. I asked my husband if he could smell it and he said it smelled like something rancid. There are many great vitamin c products and I have moved on.
Amazon Kunde Müller –
Ich bin mega zufrieden mit dem Produkt
Bernie Bradley –
I was so disappointed with the size of this item, iv bought this item before with another seller & got the full size. My fault I should of looked at the size. Must point out I have paid the same amount for a full size. So so dissatisfied 😩
Rossella –
Questo prodotto mi è piaciuto moltissimo; la consistenza è cremosa e un pochino oleosa. Data la sua corposità l’ho usato da solo sotto la protezione solare. Dopo alcuni giorni la pelle è luminosissima e le macchie risultano attenuate. L’odore non è fantastico, ma l’importante è l’effetto.
Sevinc –
Just startedIt is working well on dark spots
Andrei –
El producto tiene un olor horrible no me lo pondría en la piel por nada termine tirándolo a la basura