Chlorella Vulgaris Sh-Oligopeptide-1: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 24, 2025
Share:
Inside this article:

We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Chlorella Vulgaris Sh-Oligopeptide-1?

Chlorella Vulgaris Sh-Oligopeptide-1 is a lab-designed version of human Epidermal Growth Factor grown inside the freshwater microalgae Chlorella vulgaris. Scientists insert a copy of the human EGF gene into the algae, then let the algae act as tiny factories that churn out the peptide. After harvesting, the peptide is purified so only the chain of up to 53 amino acids remains, often held together by natural disulfide bonds and sometimes carrying small sugar groups.

Interest in growth factors for skin care began in the 1980s, but early sources were expensive and limited. Advances in genetic engineering made it possible to produce them more cleanly and affordably in microorganisms. Using algae offers a plant-based, renewable platform that fits today’s push for greener beauty tech.

You will usually spot Chlorella Vulgaris Sh-Oligopeptide-1 in leave-on products that aim to boost skin vitality such as anti-aging serums, firming creams, sheet masks, reparative essences and eye treatments. Its water-binding ability also makes it a welcome add-on in daily moisturizers while its conditioning effects have led to its use in scalp and hair tonics.

Chlorella Vulgaris Sh-Oligopeptide-1’s Cosmetic Benefits/Uses

This peptide multitasks in several ways once blended into a formula:

  • Antimicrobial – helps keep product spoilage at bay and can support a cleaner skin environment by discouraging unwanted microbes on the surface
  • Antioxidant – scavenges free radicals generated by UV light or pollution which can slow the look of premature aging
  • Hair Conditioning – coats strands lightly to improve softness, manageability and shine
  • Humectant – draws water into the upper skin layers for a plumper, better hydrated feel
  • Skin Conditioning – smooths and softens the complexion, promoting a more even, supple texture over time
  • Skin Protecting – forms a micro-film that helps defend against environmental stressors and moisture loss

Who Can Use Chlorella Vulgaris Sh-Oligopeptide-1

This peptide is generally well tolerated by all skin types including dry, oily, combination and sensitive because it is lightweight and water soluble. Those with acne prone skin usually do fine with it since it does not add heavy oils or waxes that can clog pores. No particular skin type is advised to avoid it, though anyone with a known allergy to algae derived ingredients should steer clear.

The peptide is produced in microalgae without any animal derived materials so it fits vegan and vegetarian lifestyles. Because it is a recombinant human peptide there is no harvesting from human or animal tissue.

Current research shows no reason that topical Chlorella Vulgaris Sh-Oligopeptide-1 would pose a risk to pregnant or breastfeeding women. It stays on the surface of skin and has minimal chance of entering the bloodstream. This is not medical advice and pregnant or nursing users should run any skincare products by their doctor just to be safe.

The ingredient does not increase photosensitivity, meaning it will not make skin more prone to sunburn. Standard daily sun protection is still recommended for overall skin health.

Potential Side Effects/Adverse Reactions

Reactions to topical Chlorella Vulgaris Sh-Oligopeptide-1 vary from person to person. The effects listed below are only potential issues and are unlikely for the average user when the finished product is formulated correctly.

  • Minor redness or stinging in very sensitive skin
  • Contact dermatitis if an individual is allergic to algae proteins or a preservative used alongside the peptide
  • Product instability leading to reduced efficacy when mixed with formulas that have an extremely low pH, though this affects performance rather than safety

If any irritation, swelling or rash occurs discontinue use and seek advice from a healthcare professional.

Comedogenic Rating

Rating: 0 out of 5

Chlorella Vulgaris Sh-Oligopeptide-1 is a small water-soluble peptide that does not contain oils, waxes or heavy film formers that can block pores. Because it stays on the skin’s surface and is easily rinsed away during cleansing, it earns the lowest possible comedogenic score.

This makes it suitable for people who are prone to acne or frequent breakouts.

One point to note is that the final product formula matters; if the peptide is blended into a rich cream filled with pore-clogging oils the overall product could still trigger congestion even though the peptide itself does not.

Summary

Chlorella Vulgaris Sh-Oligopeptide-1 is a lab-grown copy of human Epidermal Growth Factor produced inside microalgae. In skin and hair care it works as an antimicrobial agent that keeps unwanted microbes at bay, an antioxidant that mops up free radicals, a humectant that pulls water into the upper skin layers, a conditioning booster that smooths texture and a light protective shield that helps fend off daily stressors.

Its biotech origin means it is showing up in more high-end serums, eye creams and scalp tonics, though it is still considered a niche ingredient compared with classic hydrators like glycerin.

Current data points to a very safe profile: low risk of irritation, zero comedogenicity and no known hormonal or systemic concerns. As with any new cosmetic ingredient it is wise to patch test a small area first to rule out personal sensitivities before applying it more broadly.

Was this article helpful?
More from Glooshi:
ADVERTISEMENT
Get all our top headlines in beauty.
Delivered right to your inbox each week. Zero spam, all goodness, opt-out at anytime.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Get the latest beauty news, top product recommendations & brand-exclusive discount codes direct to your inbox.
Send good feedback:

All feedback is greatly appreciated, anonymous, and will be used to improve the quality of our articles.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Send bad feedback:

All feedback is greatly appreciated, anonymous, and will be used to improve the quality of our articles.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Search