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Transparent capsules broken open and spilling fine white powder across a white surface, illustrating NAD (nicotinamide adenine dinucleotide) supplementation.
Dr. Ethan Collins

What is NAD? Benefits, Functions, and Its Role in Longevity

Close-up of a person outdoors stretching their clasped hands forward against a blurred green park background, symbolizing renewed energy and vitality for top NAD+ supplements.
Dr. Ethan Collins

Top 5 NAD+ Supplements to Boost Energy and Vitality

Close-up of an open palm holding a mix of white, yellow, and brown supplement capsules and tablets, illustrating Andrew Huberman’s recommended supplement list.
Dr. Ethan Collins

Dr. Andrew Huberman’s Supplement List: 2025 Guide

Empty high-tech gym with treadmills and exercise bikes facing floor-to-ceiling windows overlooking a city skyline and sunrise pool, illustrating Bryan Johnson’s longevity blueprint.
Dr. Ethan Collins

Bryan Johnson’s Blueprint: Inside the Ultimate Longevity Experiment

Close-up of a hand holding assorted supplement capsules—including a golden NMN softgel and bi-colored pill—over an open palm with a glass of water nearby on a tiled floor, representing Andrew Huberman's NMN insights.
Dr. Ethan Collins

Andrew Huberman on NMN: A Science-Backed Breakdown

Assorted yellow, brown, and white supplement capsules scattered on a white surface, representing a comparison between NADH and NAD+ supplements.
Dr. Ethan Collins

NAD+ vs. NADH: Differences, Benefits & Best Choice

Two black hex dumbbells resting beside a glass of chocolate pre-workout shake and spilled white Alpha-GPC supplement capsules on a gray surface.
Dr. Ethan Collins

Alpha GPC as a Pre-Workout: Benefits, Dosage, and Safety

Top-down view of three amber supplement bottles tipped over on a gray stone surface, spilling yellow softgel capsules, beige round tablets, and beige capsules to illustrate Alpha-GPC vs. choline supplements.
Dr. Ethan Collins

Alpha GPC vs Choline: Key Differences, Benefits, and Best Choice for You

Young woman wrapped in a cozy blanket reading a book by a bookshelf, representing focus and calm as a natural Adderall alternative.
Dr. Ethan Collins

Best Natural Adderall Alternatives: Boost Focus Without the Side Effects