The complete guide library
Find a clearer answer
before you buy.
Search by product or choose a category. These are research-based buying guides: each explains its sources, shopping considerations and evidence limitations.
The guide library
Browse every buying guide
36 guides · 5 categories
04 guides
Open-ear audio
For your run, workout, and workday.
07 guides
Home & everyday
The small details behind everyday essentials.
- Choosing an air purifier for your bedroomRead guide
- What to look for in a budget robot vacuumRead guide
- Standing desk converters: size, fit, and setupRead guide
- Label makers for a more organized homeRead guide
- Mechanical pencils for writing and drawingRead guide
- Electric toothbrushes on a smaller budgetRead guide
- GEOBIN and IM4000: small-backyard compostingRead guide
06 guides
Saunas & cold plunge
Space, setup, and the details to check before you invest.
- The Sweat Cabin: planning a backyard saunaRead guide
- The Sweat Box: a one-person indoor saunaRead guide
- The Sweat Barrel: sizing up a barrel saunaRead guide
- Harvia Spirit: choosing a sauna heaterRead guide
- KOLO bucket and ladle: sauna accessoriesRead guide
- The OG Plunge Tub: a home cold-plunge optionRead guide
03 guides
Dog gear
Collars, harnesses, and leashes for larger dogs.
16 guides
Skincare
A closer look at ingredients, formats, and product claims.
- IMAGE MD power-C: a vitamin C serumRead guide
- AGELESS+ 0.1%: an introduction to retinolRead guide
- AGELESS+ 0.3%: a retinol cream guideRead guide
- CLEAR CELL: a mattifying moisturizerRead guide
- Pier Augé Douce Aura: an overnight maskRead guide
- Pier Augé Firming Tri-Active: a cream guideRead guide
- AGELESS hyaluronic 6: a hydration guideRead guide
- BIOME+ dew bright: a serum guideRead guide
- The MAX serum: ingredients and considerationsRead guide
- IMAGE MD youth serum: a product guideRead guide
- ILUMA: an eye-cream guideRead guide
- AGELESS total eye lift: a closer lookRead guide
- The MAX eye creme: a product guideRead guide
- VITAL C: an eye-gel guideRead guide
- DAILY PREVENTION: mineral SPF 75Read guide
- Acne products under $50: US formulas comparedRead guide