What Is Chlorococcum Macrostigmatum Extract?
Chlorococcum Macrostigmatum Extract comes from a freshwater green microalga called Chlorococcum macrostigmatum. The tiny organism is packed with skin friendly compounds such as proteins, polysaccharides, fatty acids and natural antioxidants like carotenoids. Researchers first looked at this alga in the search for sustainable plant based nutrients, and its skin loving profile soon caught the eye of cosmetic chemists. Today the raw algae are cultivated in closed tanks or ponds under controlled light and temperature. After harvesting the biomass is gently dried, milled to a fine powder, then mixed with water or a skin safe solvent to pull out the active molecules. The liquid is filtered and concentrated, creating a clear to light green extract ready for skincare labs. You will most often see Chlorococcum Macrostigmatum Extract in moisturizers, anti-aging serums, soothing masks, after-sun gels and lightweight lotions where a natural boost of softness and hydration is desired.
Chlorococcum Macrostigmatum Extract’s Cosmetic Benefits/Uses
This algae derived ingredient supports skin feel and appearance in two key ways.
- Skin conditioning – its mix of sugars, amino acids and antioxidants helps the surface of the skin hold water, leaving it feeling smoother and looking more supple. Regular use can lend a fresher, revitalized look
- Emollient – the gentle lipids in the extract soften rough patches and fill in tiny surface gaps so skin feels velvety and comfortable without heaviness
Who Can Use Chlorococcum Macrostigmatum Extract
This microalga extract is lightweight yet nurturing so it generally works for all skin types. Dry and mature skin appreciate the extra moisture it provides while normal and combination skin enjoy its smooth non greasy finish. Oily or acne prone users can usually tolerate it well because the extract is water based and low in lipids that might clog pores. There are no known concerns for sensitive skin though anyone with an algae allergy should avoid it.
Because the raw material is a plant derived alga and no animal by products are involved during cultivation or extraction, the ingredient is suitable for both vegans and vegetarians.
Existing safety data do not flag Chlorococcum Macrostigmatum Extract as a risk for women who are pregnant or breastfeeding. That said this is not medical advice and those who are expecting or nursing should check with their doctor before adding any new skincare product.
The extract does not increase photosensitivity and can be worn day or night without raising the risk of sunburn. Standard sun protection is still recommended whenever spending time outdoors.
Potential Side Effects/Adverse Reactions
Side effects from topical use vary from person to person. The points below outline potential reactions but most people will not experience them when the ingredient is correctly formulated and used as directed.
- Mild redness or stinging in very reactive skin
- Contact dermatitis in individuals allergic to algae or certain preservatives used alongside the extract
- Eye irritation if the product accidentally gets into the eyes
If any uncomfortable reaction occurs stop using the product and seek medical advice if symptoms persist or worsen.
Comedogenic Rating
Rating: 1 / 5 (very low)
Chlorococcum Macrostigmatum Extract is mostly water soluble and contains only a small amount of lightweight lipids, so it is unlikely to clog pores or trap oil. The molecules sit on the surface as a thin breathable film instead of forming a heavy layer. This makes it generally suitable for people who are prone to acne or breakouts.
Keep in mind that the final product formula matters. If the extract is blended with richer oils or butters, the overall product could feel heavier than the extract alone.
Summary
Chlorococcum Macrostigmatum Extract works as a skin conditioner and gentle emollient. Its mix of natural sugars, amino acids, antioxidants and light lipids helps skin hold moisture, smooth rough spots and leave the surface soft and supple.
While not a mainstream superstar yet, it is showing up more often in modern moisturizers, serums and after-sun gels thanks to rising interest in sustainable algae ingredients.
Current research and real-world use flag it as low risk for irritation or pore blockage, so most people can use it with confidence. As with any new skincare ingredient, do a quick patch test before full-face use just to stay on the safe side.