What is Yeast Polysaccharides?
Yeast polysaccharides, also known as polysaccharides yeast-cell-wall, are a popular ingredient in the cosmetic industry. They’re derived from the cell walls of yeast and are known for their skin conditioning and protecting properties. This ingredient is also great for forming a film on the skin and controlling viscosity in cosmetic products.
To make yeast polysaccharides, yeast cells are cultivated and then harvested. The cell walls are then isolated and broken down to release the polysaccharides. These natural components are effective because they help to maintain the skin’s moisture barrier, protect against environmental stressors, and can provide a smoothing effect, making the skin look and feel better.
Who Can Use Yeast Polysaccharides?
Yeast polysaccharides are generally suitable for all skin types. They are particularly beneficial for those with dry or sensitive skin due to their moisture barrier protection and skin soothing properties. However, if you have a yeast allergy, you might want to steer clear as it could potentially cause irritation or an allergic reaction.
For vegans and vegetarians, yeast polysaccharides are a suitable choice. They are derived from yeast, which is a single-celled organism, making it acceptable for those avoiding animal-derived ingredients.
Regarding use during pregnancy or breastfeeding, there are no specific contraindications known for yeast polysaccharides in cosmetic products. However, as with any product, it’s always a good idea to consult with a healthcare provider before starting any new cosmetic products during these sensitive times.
Yeast Polysaccharides’s Cosmetic Benefits/Uses
The benefits and uses listed in this section are based on the cosmetic benefits and uses of Yeast Polysaccharides, as officially defined by the International Nomenclature of Cosmetic Ingredients (INCI) and the Personal Care Products Council (PCPC).
- Moisturizing: Yeast Polysaccharides are known for their ability to attract and retain moisture. This is due to their hygroscopic nature, meaning they can draw water from the surrounding environment into the skin. This helps to maintain skin hydration, reduce dryness, and create a plumping effect that can diminish the appearance of fine lines and wrinkles.
- Skin Barrier Enhancement: These polysaccharides contribute to the strengthening of the skin’s barrier function. By enhancing the skin’s natural barrier, they help to protect against environmental stressors such as pollutants and irritants. This barrier enhancement is crucial for maintaining skin health and preventing transepidermal water loss, which can lead to dry and irritated skin.
- Anti-aging Properties: Yeast Polysaccharides help to improve skin elasticity and firmness, contributing to a more youthful appearance. They stimulate the production of collagen and elastin, two critical proteins in the skin that diminish as we age. By promoting these proteins, yeast polysaccharides can help reduce the visibility of aging signs such as wrinkles and sagging skin.
- Antioxidant Effects: These polysaccharides also possess antioxidant properties, which play a role in protecting the skin from oxidative stress caused by free radicals. This protection is vital for preventing cellular damage and aging, contributing to healthier, more resilient skin.
- Soothing Effects: Due to their natural properties, Yeast Polysaccharides can have a soothing effect on the skin, making them beneficial in products aimed at reducing redness and irritation. This makes them suitable for sensitive skin types and conditions like rosacea or eczema.
Potential Side Effects/Adverse Reactions
Side effects and reactions to the topical application of Yeast Polysaccharides can vary from person to person. Here are some potential side effects:
- Redness
- Itching
- Swelling
- Skin irritation
- Allergic reactions
If you experience any of these side effects while using a product containing Yeast Polysaccharides, it is advisable to discontinue use immediately and consult a healthcare professional.
While the list of potential side effects might sound extreme or scary, it’s important to note that adverse reactions to Yeast Polysaccharides are generally rare. Most users experience beneficial effects without any negative reactions.
Given the variability in how individuals react to cosmetic ingredients, the importance of patch testing cannot be overstated. Applying a small amount of the product to a discreet area of skin and waiting 24 hours to observe any reactions is a prudent step to ensure compatibility with Yeast Polysaccharides.
Comedogenic Rating
Comedogenicity refers to the potential of cosmetic ingredients to cause comedones, which are skin blemishes commonly known as blackheads and whiteheads. This rating helps determine if a product is likely to clog pores and exacerbate skin conditions like acne. Ratings range from 0, indicating no likelihood of clogging pores, to 5, which signifies a high probability.
Yeast Polysaccharides have a comedogenic rating of 0. This means they are non-comedogenic and do not clog pores. The molecular structure and solubility of Yeast Polysaccharides contribute to their inability to block skin pores, making them suitable for use in cosmetic formulations, especially for those prone to acne and breakouts.
Conclusion
Yeast Polysaccharides serve several functions in cosmetic products, including film forming, skin conditioning, skin protecting, and viscosity controlling. These properties make Yeast Polysaccharides a versatile ingredient in the formulation of various skincare and beauty products.
Despite not being as popular as some other ingredients with similar functions, Yeast Polysaccharides hold a valid place in contemporary cosmetic formulations. They are comparable to other polysaccharides used for their film-forming and moisturizing properties. The safety of Yeast Polysaccharides in cosmetic products is well-regarded, making them a reliable choice for formulators looking to enhance the performance and feel of their products.