Elena Marsh
Health & Supplements Editor
Elena Marsh is the Health & Supplements Editor at ULBR Ads. She specializes in evidence-first evaluation of nutrition and wellness products, prioritizing third-party testing, dosage transparency and peer-reviewed research over marketing claims. Elena's reviews are grounded in primary sources and a healthy skepticism of category hype.
Articles by Elena
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Best Magnesium Supplements
We compared magnesium forms, doses and third-party testing to find the supplements most likely to help with sleep, stress and muscle recovery.
Best Probiotics
Strain specificity, CFU counts and shelf stability separate genuinely useful probiotics from expensive placebos. Here is how the leaders compare.
Best Collagen Supplements
Peptide type, sourcing and added actives determine whether a collagen supplement is worth it. We break down what the research supports.
Best Joint Support Supplements
From glucosamine to collagen and omega-3s, we assess which joint-support ingredients have evidence and which are riding on reputation.
Best Testosterone Boosters
Most 'boosters' overpromise. We separate the ingredients with real evidence — like vitamin D and zinc when deficient — from the marketing.