How to Compare Two Black Garlic Supplements Fairly

If two black-garlic bottles look similar, a fair comparison requires more than the largest number on the front label.

1. Match the ingredient form

Compare powder with powder and extract with a genuinely comparable extract where possible. An extract-equivalent number is not the same as actual finished ingredient weight.

2. Compare per serving, not only per capsule

One brand may define a serving as one capsule and another as two. Use the labelled serving to avoid misleading comparisons.

3. Check standardisation

If one product declares a marker such as SAC and another does not, they provide different levels of compositional information. Do not invent a marker value for the non-standardized product.

4. Count usable servings

A bottle with more capsules is not always a better value if the serving size is larger. Divide the total capsule count by the labelled capsules per serving.

5. Compare safety and traceability information

Directions, warnings, manufacturer details, batch information and storage instructions are part of product quality communication.

6. Calculate price per serving

This is usually more meaningful than bottle price alone, but it still does not measure clinical effectiveness.

7. Do not reward exaggerated claims

Disease-treatment language and borrowed study results should lower confidence, not increase it.

For a worked label-reading framework, see our India guide.

Core black garlic references

• Mandge HM et al. Systematic review of black garlic phytochemistry and biofunctionality. PMID 41695811.
• Ahmed T, Wang CK. Black Garlic and Its Bioactive Compounds on Human Health Diseases: A Review. PMID 34443625.
• Moreno-Ortega A et al. Human bioavailability of organosulfur compounds after black garlic ingestion. PMID 37107300.

This article is educational, not medical advice. Do not use a food supplement to replace prescribed treatment.