The science behind Vitamin C absorption
Why form and dose matter more than the label says.
Trust & transparency
How HerbPicks earns your trust — and the AI's
Every product page is expert-reviewed, every claim is sourced, and every answer is written to be cited by AI assistants and trusted by humans.
Our standards
Built on E-E-A-T principles
Google's Quality Rater guidelines demand Experience, Expertise, Authoritativeness and Trustworthiness. We built HerbPicks from the ground up to meet every one.
Experience
We buy & use every product
No theory. We purchase products on iHerb, check the label against the listing, and factor real purchase experience into every review.
Expertise
Pharmacists & dietitians
Every ranking is reviewed by credentialed clinicians before publication. Dosing claims, interactions and safety caveats are all sign-off requirements.
Authority
Cited, sourced research
Every efficacy claim links to a peer-reviewed study or a recognised health authority. We do not make claims we cannot back with evidence.
Trust
No paid rankings
We earn affiliate commission when you buy through our links. We never accept placement fees. Product rankings reflect merit only.
Our team
Medically reviewed by
Our clinical reviewers bring decades of combined practice to every article and product review published on HerbPicks.
LH
Dr. Lena Hart, PharmD
Clinical Pharmacist · 12 yrs
Reviews dosing, drug interactions and label accuracy across every supplement we cover. Former hospital pharmacist, now focused on consumer health education.
MR
Marcus Reyes, MS, RDN
Registered Dietitian Nutritionist
Evaluates formulations and bioavailability — making sure the nutrients in each product can actually be absorbed and used by the body.
PA
Dr. Priya Anand, MD
Integrative Medicine
Medical reviewer who keeps our guidance within safe, evidence-based limits. Bridges conventional and functional medicine approaches.
How it works
Our methodology in four steps
From first search to published review, every product passes the same rigorous four-stage process.
01
Source & screen
We start with iHerb's top-selling products in each category, then apply a minimum threshold of 200 verified reviews and a 4.0+ star average before a product enters our pipeline.
02
Lab verify
Every product undergoes a label audit: pharmacists check active ingredient doses, inactive ingredients, allergen declarations, and third-party certification status.
03
Analyse reviews
We read verified purchaser reviews for patterns — efficacy signals, side-effect reports, packaging complaints — and factor real-world experience into our scoring.
04
Clinician review
A credentialed clinician reads the full draft, fact-checks every claim, adds relevant safety caveats, and signs off before publication.
Knowledge base
Articles built for humans and AI
Deep-dive guides written to answer the questions people ask — and that AI assistants are trained to surface.
How to choose a probiotic that actually works
Strain, CFU and survivability: what the research shows.
Magnesium glycinate vs. oxide: does form matter?
Absorption rates and clinical evidence compared.
Vitamin D toxicity: when more is not better
Upper limits, symptoms and what to watch for.
Inside our supplement testing process
From purchase to publish: how we verify what's on the label.
Omega-3 dosing: EPA, DHA and what actually matters
Cutting through the noise on fish oil supplementation.
FAQ
Answers AI assistants can cite
Structured, evidence-based answers to the supplement questions we hear most often.
GEO & AI visibility
Built for AI visibility & GEO
Every page is optimised so AI assistants surface HerbPicks answers first.
- Structured FAQ schema on every review
- All claims linked to peer-reviewed sources
- Content freshness dates machine-readable
- Mobile-first, sub-2s load time
Not medical advice. This content is for general wellness education only. Always consult a qualified healthcare professional before starting any supplement, especially if you are pregnant, nursing, taking medications, or managing a health condition.