Our Review Methodology
1. How We Evaluate Supplements
At Onsko, our mission is to provide clear, research-driven supplement reviews to help readers make informed health decisions.
Each product we review is evaluated based on the following criteria:
Ingredient Quality
We assess whether ingredients are clinically studied, properly dosed, and free from unnecessary fillers or proprietary blends.
Scientific Evidence
We review available clinical research to determine whether the product’s key ingredients are supported by peer-reviewed studies.
Brand Transparency
We prioritize companies that disclose full ingredient labels, manufacturing standards, and sourcing practices.
Third-Party Testing
Brands that undergo independent third-party testing for purity and safety receive higher ratings.
Value for Money
We evaluate cost relative to ingredient quality, formulation strength, and market standards.
2. Our Rating System (0–5 Stars)
Each product is rated on a 5-point scale.
★★★★★ (4.5 – 5.0)
Outstanding formulation, strong research backing, excellent transparency, and high overall value.
★★★★☆ (4.0 – 4.4)
High-quality product with minor limitations.
★★★☆☆ (3.5 – 3.9)
Decent formulation but may lack optimal dosing or transparency.
★★☆☆☆ (3.0 – 3.4)
Below-average formulation or limited scientific support.
★☆☆☆☆ (Below 3.0)
Significant concerns regarding ingredients, transparency, or value.
Products scoring below 3.5 are generally not featured on our homepage recommendations.
3. Our Editorial Standards
Onsko operates independently and is committed to unbiased, research-based content.
Our editorial team evaluates supplements using publicly available research, ingredient analysis, and brand transparency standards. We do not accept payment in exchange for positive reviews.
Our goal is to present balanced information, including both strengths and potential drawbacks of each product.
We strive to update our reviews as new research becomes available.
4. Affiliate Disclosure
Some links on this website are affiliate links. This means we may earn a commission if you purchase through our links, at no additional cost to you.
These commissions help support our research, content development, and website maintenance.
However, affiliate relationships do not influence our editorial ratings or product evaluations. All reviews are conducted using the same evaluation criteria described above.
We are committed to transparency and providing honest information to our readers.
If you have questions about our methodology, please contact us at contact@zenvorialabs.com