Peter Thomas Roth Potent-C Power Serum 1 fl oz

Benefits of Potent-C Power Serum

• Delivers 20% THD Ascorbate for visible brightening and firmer skin texture. 
• Helps smooth the appearance of fine lines and wrinkles, and improves visible firmness and tone. 
• Works to even skin tone and smooth texture by targeting uneven tone, dullness and dehydration. 

What you'll notice:

• Your skin looks brighter and more even in tone.
• The appearance of fine lines and wrinkles looks softened.
• Your skin feels smoother with improved texture and a firmer look.

Clinical Results:

• Based on a 28-day consumer perception study on 33 women (ages 49-65) users reported improvement in wrinkles, firmness and brightness. 

Study details: Internal brand consumer perception test, 4-week duration, n=33 women aged 49-65. 

How To Use Potent-C Power Serum

1. Apply 1–2 pumps to clean, dry face and neck. 
2. Use morning and night for best results. 
3. Follow with your moisturizer and eye cream as needed. (No ramp-up required as product is formulated for all skin types.)

Pro Tip (from estheticians): For optimal absorption, apply while skin is slightly damp after cleansing, then wait 30 seconds before proceeding with your next product—this helps the high-potency vitamin C penetrate fully.

Potent-C Power Serum Ingredients

CLINICALLY TESTED / KEY INGREDIENTS

THD Ascorbate (20 %): An ultra-stable, high-potency form of vitamin C claimed to be 50 × more effective than standard ascorbic acid. 

Vitamin E (3 %): A potent antioxidant that supports the performance and stability of the vitamin C complex. 

Ferulic Acid (2 %): A plant-derived antioxidant that enhances the brightening and firming benefits of the formula. 

INGREDIENTS

Water/Aqua/Eau, Tetrahexyldecyl Ascorbate, Butylene Glycol, C9-12 Alkane, Caprylyl Methicone, Tocopheryl Acetate, C10-18 Triglycerides, Polyglyceryl-6 Distearate, Ferulic Acid, Squalane, Hydrogenated Lecithin, Propanediol, Sodium Hyaluronate, Zingiber Officinale (Ginger) Root Extract, Curcuma Longa (Turmeric) Root Extract, Panax Ginseng Root Extract, Jojoba Esters, Leuconostoc/Radish Root Ferment Filtrate, Coco-Caprylate/Caprate, Glycerin, Cetyl Alcohol, Polyglyceryl-3 Beeswax, Xanthan Gum, Disodium EDTA, Mica, Ethylhexylglycerin, Potassium Sorbate, Sodium Benzoate, Phenoxyethanol

Skin Elite is dedicated to maintaining the accuracy of the ingredient lists on this website. However, because ingredients are subject to change, we cannot guarantee that these lists are complete, up-to-date and/or error-free. For an accurate listing of ingredients in each product, please refer to your product packaging.

FAQs

Can I use this while pregnant or nursing?
The brand does not provide explicit guidance for use during pregnancy or nursing; please consult your physician before use.

Can I use this with retinol/retinal/acid exfoliants?
Yes — this serum can be used in tandem with retinol or acid treatments, though you may want to apply the vitamin C serum first, then wait 5-10 minutes before applying more potent actives.

Is it suitable for sensitive skin?
Yes — the formula is described as suitable for all skin types including sensitive; however, because it contains high-strength actives (20% vitamin C), a patch test is recommended for users with very reactive skin.

How long until I see results?
Visible improvements in brightness and texture may begin within one use; users in a 4-week study reported improvement in wrinkles, firmness and tone. 

Can I use it around the eyes?
The brand does not specify use under the eyes; apply only to face and neck, and avoid lash line or direct eye contact.

Storage and shelf life?
Store in a cool, dry place out of direct sunlight; once opened, best results are achieved within 12 months (per standard skincare guidance, though brand does not specify a separate shelf-life).

People Also Ask

Is Potent-C Power Serum good for acne-prone skin?
Yes — while its focus is brightening and anti-ageing, the lightweight serum format is oil-free and suitable for combination or oily skin types; it also supports a clearer, more even-tone complexion which can help those with post-acne discoloration.

Can you use Potent-C Power Serum every day?
Yes — the brand recommends applying it twice daily (morning and night) for best results. 

Does Potent-C Power Serum work under makeup?
Yes — the lightweight texture absorbs fully before makeup and leaves skin looking smoother, brighter and primed; allow 30-60 seconds after application before proceeding with makeup.

How long does a bottle of Potent-C Power Serum last?
With one pump per use (twice daily), a 1 fl oz bottle typically lasts about 1–1.5 months depending on usage; actual longevity may vary.

Is Potent-C Power Serum fragrance-free / oil-free?
The brand identifies the formula as fragrance-free; oil-free is not explicitly stated but the serum is described as lightweight and suitable for all skin types.