Evidence-based supplement guidance

Herbs & supplements, actually explained.

Evidence-based guides for sleep, stress, anxiety, and focus — mechanisms, safety context, and practical comparisons without marketing fluff.

Evidence-first

Cite and verify

Safety aware

Context matters

Clear and honest

No marketing fluff

Smarter choices

Compare before you choose

Side-by-side guides answer the questions people ask before buying, combining, or switching products.

Browse all comparisons

Choose one path

Start with the outcome you care about, then compare evidence and safety inside that guide.

View all guides

Depth library

Look up a specific supplement

Go beyond a quick recommendation with a profile covering evidence, mechanisms, dosing context, and safety.

Read the signal

Evidence strength, in plain English

A mechanism can be plausible without proving a real-world benefit. Our labels prioritize human research.

Strong

Consistent human clinical evidence

Moderate

Useful human evidence with limitations

Limited

Early, mixed, or indirect evidence

How we grade evidence

Latest research

Evidence reviews, mechanism deep-dives, and practical guides — updated regularly.

Browse all guides

Built on evidence, not trends.

We evaluate the research so you do not have to. Transparent source notes help you understand the “why” behind every claim.

Read the evidence methodology

How to use this library

Evidence-first supplement research, not hype

The Hippie Scientist is organized around practical questions: sleep, stress, anxiety, focus, safety, dosing, and product quality. Start with the goal that matches your situation, then use the herb and compound profiles to compare evidence strength, mechanism plausibility, and safety tradeoffs before buying anything.

Each page is written to separate what is known from what is only mechanistically plausible. The goal is not to make every ingredient sound useful; it is to help you narrow choices, avoid unnecessary stacks, and understand when a supplement question belongs with a clinician or pharmacist.