Comparison of Bio-Yeast Essence and SK-II Pitera: Concentration and Effectiveness
คำถาม
I am interested in comparing Bio-Yeast Essence with SK-II Pitera. I noticed that the recommended usage percentage for Bio-Yeast Essence is 0.5-1%, while SK-II's product contains 90% Pitera. Could you please explain:
- Why is there such a large difference in the recommended usage percentages?
- How does the difference in concentration relate to the effectiveness of the two ingredients/products?
- What are the key factors that determine the effectiveness of these yeast-derived ingredients?
คำตอบ
Subject: Bio-Yeast Essence vs. SK-II Pitera
Regarding your question about Bio-Yeast Essence and SK-II's Pitera, and the difference in recommended usage percentages (0.5-1% vs. 90%), it's challenging to make a direct comparison for several reasons:
- Different Extraction Methods & Concentration: The concentration of active substances can vary greatly depending on the extraction process used. A higher percentage in the final product doesn't always mean a higher concentration of the key active compounds.
- Water Content and Formulation: The stated percentage can be influenced by how the ingredient is prepared and measured. A high percentage like 90% might include significant water content, especially if the original material was freeze-dried and then rehydrated for formulation. This is often related to marketing.
- Different Yeast Types: Bio-Yeast Essence is derived from Saccharomyces, while Pitera uses Saccharomycopsis. These are different types of yeast.
- Lack of Direct Comparative Research: There is currently no independent, reliable research directly comparing the efficacy of these two specific ingredients.
As mentioned by the staff and cosmeceutical7, the effectiveness depends more on the specific active compounds obtained through the extraction process, rather than just the source yeast type or the percentage in the final product (which can be influenced by formulation choices).
Our company policy is to only state the results claimed by the ingredient developer's research. For Bio-Yeast Essence, the developer's research on this specific Saccharomyces extract indicates it can stimulate skin cell metabolism, leading to benefits such as:
- Increased skin firmness
- Skin health restoration and wrinkle reduction
- Continuous skin softness and moisture, reduced irritation
- Smoother, more vibrant skin
While we cannot claim that Bio-Yeast Essence will yield results equivalent to SK-II, it offers its own set of researched benefits. We look forward to hearing about your experience and review after trying it!