The Circadia Phito-Pep 1.6 Antioxidant Lotion uses tetrahexyldecyl ascorbate, a lipid-soluble ester form of vitamin C rather than the more common water-soluble L-ascorbic acid. This form is more stable in a formula, less likely to cause sensitivity, and able to penetrate the lipid-rich layers of the skin more effectively. It still delivers the brightening and antioxidant benefits associated with vitamin C, but with a gentler profile that suits a wider range of skin types.

Palmitoyl tripeptide-38 is a synthetic peptide that communicates with skin cells to stimulate the production of collagen, fibronectin, and hyaluronic acid, all structural components that give skin its firmness and volume. Over consistent use, it helps visibly soften fine lines and improve the overall density of the skin. It is one of the primary reasons this lotion qualifies as more than a standard moisturizer.

Yes, the formula is built around ingredients with a strong tolerability profile. Panthenol, beta-glucan, oat kernel extract, and helichrysum stoechas extract all contribute calming and barrier-supportive benefits that make the lotion appropriate for reactive or easily irritated skin. The vitamin C used is a gentle lipid-soluble form that avoids the pH-related irritation associated with L-ascorbic acid.

The formula combines glycerin and panthenol as humectants that draw water into the skin, caprylic/capric triglyceride as an emollient that smooths and conditions the surface, and beta-glucan to help reinforce barrier integrity and reduce sensitivity. Together, these ingredients help maintain the protective skin barrier that keeps moisture in and environmental stressors out.

The lotion includes pseudoalteromonas ferment extract, vibrio alginolyticus ferment filtrate, and phormidium persicinum extract, all marine or microorganism-derived ingredients known for their conditioning, soothing, and skin-supporting properties. These extracts contribute to the overall skin-balancing profile of the formula and complement the peptide and antioxidant actives.

Yes, it is formulated for twice-daily use. In the morning, the antioxidant ingredients including tetrahexyldecyl ascorbate and superoxide dismutase help protect against environmental oxidative stress. In the evening, the peptides and barrier-supporting ingredients get to work while your skin is in its natural repair cycle. Using it consistently at both times maximizes the cumulative results.

Yes, the formula contains parfum. If you have fragrance sensitivities, it is worth patch-testing before incorporating this lotion into your daily routine. That said, the overall formula is designed to be balanced and skin-compatible, and the fragrance is present at a cosmetic level rather than as a functional ingredient.

Art of Skin Care is an authorized retailer of Circadia, so every product you receive is 100% authentic, sourced directly through official brand channels and never from third-party resellers. Our team is made up of licensed, acne-certified estheticians who hand-select the products we carry based on real skin science and professional results. We don't just sell skincare; we understand it. Not sure if Circadia Phito-Pep 1.6 Antioxidant Lotion is right for your skin? Get a free skincare consultation and one of our estheticians will personally guide you.