THORNE - Undecylenic Acid (Formerly Formula SF722) - 250 mg of Undecylenic Acid - for a Healthy Balance of Gut & Vaginal Flora* - Gluten Free - 250 Gelcaps - 50 Servings

THORNE - Undecylenic Acid (Formerly Formula SF722) - 250 mg of Undecylenic Acid - for a Healthy Balance of Gut & Vaginal Flora* - Gluten Free - 250 Gelcaps - 50 Servings

ASIN: B000FGXMWC
Analysis Date: Jan 9, 2026

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Review Analysis Results

B
Authenticity Grade
15.00%
Fake Reviews
3.47
Original Rating
3.20
Adjusted Rating

Analysis Summary

The vast majority of these reviews appear genuine, with approximately 85% showing authentic characteristics. Most reviews are verified purchases and contain highly specific personal health narratives that would be difficult to fabricate consistently. The reviews demonstrate a wide range of experiences, from highly positive to negative, with detailed accounts of both benefits and product issues, which is typical of authentic user feedback.

Strong evidence of authenticity includes multiple reviews with detailed medical histories (systemic Candida diagnoses, decades of symptoms), specific usage contexts (coupled with Zeolite, during candida cleanse), and balanced perspectives acknowledging both product effectiveness and practical issues like melting in heat. Review R3CPQ3MQP1Y72Z provides nuanced advice about consistency and patience, while R38T8IL6YNVV44 shows critical thinking by contacting the manufacturer directly about expiration date confusion.

The only potential manipulation patterns appear in a few brief 5-star reviews lacking specific details. Review R1PJXA48EIBZPT ('Good product') is overly generic without personal context, and RIXKXJX0X95SB contains some marketing-like phrasing ('amazinglyfab') though still includes personal context about fighting Candida. These represent a small minority of the overall feedback.

Overall, this review set demonstrates authentic user experiences with a legitimate health supplement. The detailed medical narratives, varied ratings (including multiple 1-star reviews about melting capsules), and specific product discussions outweigh the few generic positive reviews. The product appears to have genuine users experiencing both benefits and practical storage issues in hot climates.

Key patterns identified in the review analysis include: Detailed personal medical histories, Specific product condition complaints in hot weather, Balanced perspectives acknowledging both benefits and limitations.

Review Statistics

1,762
Total Reviews on Amazon
-0.27
Rating Difference

Price Analysis

Thorne products are premium-priced within the supplement category, with this 250-count bottle likely retailing around $65 based on brand positioning. Given the mixed Amazon rating (3.47/5), verify current reviews for quality consistency before purchasing. Look for Amazon's direct fulfillment or Thorne's official store to ensure authenticity, and consider smaller quantities first if trying this product.

MSRP Assessment

Estimated MSRP: $65.00
Source: Brand typical pricing
Amazon Price: Unable to compare

Market Position

Positioning: Premium
Alternatives Range: $15-$45
Value: Thorne is a practitioner-grade supplement brand commanding higher prices for quality and purity, though similar gut health supplements are available at lower price points.

Buying Tips

Best Time to Buy: No strong seasonal pattern, but health supplement sales often occur around New Year's resolutions and back-to-school periods.
Deal Indicators: Subscribe & Save discounts, bundled offers with other Thorne products, or promotions during Amazon Prime Day/Black Friday.
Watch For: Be wary of third-party sellers with prices significantly below Thorne's direct pricing, as authenticity may be compromised; also watch for unusually high shipping costs.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Jan 9, 2026

Understanding This Analysis

What does Grade B mean?

This product has good review authenticity with minor concerns. While most reviews appear genuine, we detected some patterns that warrant mild caution.

Adjusted Rating Explained

The adjusted rating (3.20 stars) represents what we estimate this product's rating would be if fake reviews were removed. This product's adjusted rating is lower than Amazon's displayed rating (3.47 stars), suggesting positive fake reviews may be inflating the score.

How We Detect Fake Reviews

Our AI analyzes multiple factors: language patterns (generic vs. specific), reviewer behavior (history, timing), temporal anomalies (review clusters), verification status, sentiment authenticity, and statistical outliers. No single factor determines a review is fake - we look at the combination of signals.

Important Limitations

No automated system is perfect. Sophisticated fake reviews can evade detection, and some genuine reviews may be incorrectly flagged. Use this analysis as one data point in your purchasing decision, not the only factor. Reading actual review content yourself is always valuable.

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