Fertility Supplement Index

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Testing you can check

A brand that lists its testing lab, seal, or certified facility, so you can check it yourself.

  • 2 brandson this list
  • Theralogixfirst on this list
  • $$price bands, lowest to highest
  • October 27, 2026scores last reviewed

Seals, labs, and certified facilities

A testing claim helps only if you can check it. Theralogix's product page says NSF International certifies TheraNatal OvaVite for content and purity, and NSF keeps public listings you can search. Eu Natural says its formulas are made in a cGMP-certified facility, which covers how the factory makes the product. A seal tells you about what is in the bottle. It is not evidence that the formula improves fertility.

What to check before you buy

  • What to look for

    Look for the lab, the seal, or the facility certification on the product page.

  • Common mismatch

    Reading a factory certification as proof that each batch was tested.

  • If a clinic is involved

    The clinic's list wins. Take the label to the appointment so the clinician can see what is in the routine.

  • What the scores rate

    Scores rate the label and the published price, not your chance of conceiving.

Brands with a testing claim you can check

Each brand gets three sub-scores from 1 to 10. The overall score weights cost at 25%, ingredient quality at 35%, and fertility targeting at 40%.

  1. 1TheralogixCertified fertility vitaminsThe TheraNatal OvaVite page says NSF International certifies its content and purity. Confirm the current seal in NSF's listings.Highly recommend$$$Overall8.2Cost7Quality8Targeting9
  2. 2Eu NaturalConception formulasMade in a cGMP-certified facility, as the brand publishes. That covers how the product is made, not a test of each lot.Highly recommend$$$Overall8.3Cost9Quality7Targeting9

Price bands compare each brand's published price with the other reviewed brands, from $ for the lowest to $$$ for the highest. Scores last reviewed October 27, 2026.

Common questions about third-party testing

How do I check an NSF claim?

Start on the product page and find the seal itself, not only the words. Then search NSF International's public listings for the product name. Theralogix says NSF certifies TheraNatal OvaVite for content and purity, so recheck when you reorder, because a seal can lapse or change.

What does cGMP-certified mean?

cGMP stands for current Good Manufacturing Practice, a standard for how supplements are made and handled in the factory. Eu Natural says its formulas are made in a cGMP-certified facility. It describes the factory, not a lab result for the bottle you buy.

Does a testing seal mean the formula works?

No. A seal is about content and purity, meaning the bottle holds what the label says. It is not evidence that the formula improves fertility.

How much do these products cost?

Theralogix's TheraNatal OvaVite costs $124 for a 13-week supply, and its TheraNatal Core is $33 for 90 days. Eu Natural's two conception formulas are $34.99 a bottle each. These are the brands' published prices from October 2026, and they can change.

Related use cases

See all 18 use cases, the full ranking, or the categories, which group the brands by product type.