Ingredient Spotlight: Sea Moss  

Written by: Christine Jean-Baptiste  

Reviewed by: Dr. Renita Ahluwalia, lead Dermatologist at the Canadian Dermatology Centre    

What is Sea Moss?  /siː mɒs/ (SEE-moss)  

Sea moss, also known as Irish moss or Chondrus Crispus, is the trendy seaweed making skincare waves. This powerhouse hydrator and antioxidant contains essential minerals like calcium, magnesium, and vitamins A and K, giving your skin a nourishing boost. Not only does it hydrate and protect, but it's also known to help balance acne-prone skin thanks to its antibacterial and anti-inflammatory properties. If you're dealing with dry skin or breakouts, sea moss might just be your new go-to ingredient.  

 Sea Moss Key Information  

• Type of Ingredient: Hydrator & Antioxidant  

• Main Benefits: Hydrates skin, reduces acne and inflammation, supports skin's natural barrier.  

• Ideal For: All skin types, especially acne or dry skin.  

• Usage Frequency: Gentle enough for daily use, but most products recommend using 2–4 times a week.  

• Works Well With: Moisturizers, serums, and other leave-on products that form a protective barrier on the skin.  

• Avoid Combining With: Sea moss is less effective in wash-off products, so skip it in cleansers or masks.  

 Benefits of Sea Moss for Skin  

• Hydrates & Soothes: Rich in omega-3 fatty acids, sea moss deeply hydrates dry or irritated skin, leaving it plump and moisturized.  

• Fights Acne: Thanks to its high sulphur content, sea moss can help reduce excess oil production and combat acne-causing bacteria, making it ideal for those with acne-prone skin.  

• Anti-inflammatory: Its anti-inflammatory properties help calm redness and irritation, reduce puffiness, and promote an even complexion.  

• Protects & Nourishes: With 15 of the 18 essential minerals that make up the human body, sea moss nourishes the skin and supports healthy, resilient skin.  

• Supports Skin's Barrier: By forming a thin film over the skin, it locks in moisture and protects against environmental damage.  

  Application Insights  

• In Your Routine: Apply sea moss-based products—like moisturizers or serums—after cleansing and toning 2–4 times a week. Follow up with sunscreen during the day.  

• Complementary Products: Sea moss pairs well with other hydrating and soothing ingredients like aloe vera, hyaluronic acid, and green tea, which can amplify its calming effects.  

• Avoid Overuse: While gentle, avoid layering sea moss with exfoliating acids in the same routine. Patch-test first if you have sensitive skin to prevent irritation.  

Selecting a Sea Moss Product     

Look for moisturizers, serums, or face masks that list Chondrus Crispus (sea moss) as one of the main ingredients. Ideally, choose products formulated for daily use, but follow the frequency recommended by the brand.    

Summary Points  Sea Moss:   

• A hydrating and antioxidant-rich ingredient that helps balance acne, calm inflammation, and nourish the skin.  

• Benefits: Reduces acne, hydrates, soothes irritation, and strengthens the skin's natural barrier.  

• Ideal For: Those with dry, sensitive, or acne-prone skin.  

• Usage: Best used 2–4 times weekly in moisturizers, serums, or other leave-on skincare products.  

• Product Selection: Choose leave-on products like moisturizers or serums for maximum benefits. Avoid wash-off formulations for full effect.  

The Callout  

• Skin Sensitivity: Always patch-test before widespread use, especially if you have sensitive skin. If irritation occurs, reduce usage frequency or discontinue.