Peter Thomas Roth Marine Algae Mask Intense Hydrating Treatment
The Peter Thomas Roth Marine Algae Mask Intense Hydrating Treatment is a luxurious, cooling treatment designed to quench thirsty skin with deep, soothing moisture. Formulated with a calming base of Salvia Officinalis (Sage) flower water and Glycerin, this mask provides immediate relief to dehydrated and tired complexions. The inclusion of Camellia Sinensis (Green Tea) Leaf Extract adds a significant boost of antioxidant protection, helping to calm visible redness and defend against environmental stressors. Additionally, Pseudoalteromonas Ferment Extract works to improve the skin's ability to retain water, leaving the face feeling plump, supple, and refreshed after every use. While the texture is designed to be rich and bouncy, providing a refreshing sensory experience, the focus of this mask is 'marine' botanical hydration. However, for those carefully monitoring their pore health, the very ingredients that give this mask its namesake—marine algae extracts—require a closer look. It is an incredibly effective choice for those seeking an intense moisture surge, provided their skin isn't naturally prone to follicular congestion or chronic breakouts.
Our Analysis
Our analysis of the Peter Thomas Roth Marine Algae Mask reveals a MODERATE comedogenic risk level. The primary concern for acne-prone users is the inclusion of Algae Extract, which carries a 5/5 comedogenic rating. While algae is often lauded for its hydrating and mineral-rich properties, it is naturally high in iodides. These minerals can irritate the pore lining, potentially triggering inflammation and the formation of micro-comedones in susceptible individuals. While the top ingredients like Glycerin and Green Tea are skin-friendly, the presence of highly comedogenic algae makes this a risky choice for users battling acne.
Skin Type Recommendations
This mask is best suited for dry or dehydrated skin types that are not prone to acne. Its humectant-rich formula provides excellent surface hydration and soothing benefits. However, it is not recommended for oily or acne-prone skin due to the high comedogenic rating of algae extract, which may clog pores.
Flagged Ingredients
Rich in iodides which irritate the pore lining, triggering inflammation and micro-comedones.
Want Deeper Analysis?
Run our MACR (Multi-Axis Comedogenic Risk) analysis to get a comprehensive 5-axis risk assessment. This AI-powered analysis evaluates ingredients for Plugging Risk, Barrier Damage, Fungal Acne Risk, Oxidation Risk, and real-world User Reports — giving you personalized scores for your skin type.
