Equelle

Equelle bets everything on a single active ingredient instead of a sprawling herbal blend — a bold, focused approach for a menopause-support supplement, and one that's easier to evaluate than most.

That ingredient is natural S-equol, made from soybeans via a patented fermentation process and used in Japan since 2014 (Equelle). S-equol is a metabolite of the soy isoflavone daidzein that only 20-30% of American women naturally produce (NAMS/LWW document). The clinically studied dose — 10 mg/day — is exactly what's in the product (Mayo Clinic CE).

There's no NSF, USP, or Informed certification, and no published COA program — Equelle's credibility case rests on clinical trials rather than third-party certification (Equelle clinical research).

The evidence has real nuance: the pivotal hot-flash trial wasn't statistically significant at Week 4 (P=0.063), only reaching significance by Week 8 in a high-symptom subgroup, and much of the supporting research comes from Japanese populations (Mayo CE, PubMed). Compared to Perelel's broader, blend-free formulation, Equelle is the narrower bet — great if you want one well-studied compound, less useful if you want multi-ingredient hormone support.