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Caffeine, nicotine, alcohol and other everyday psychoactive substances. 144 rated.
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A–Z
Goal
Any
Weight loss
Appetite
Focus
Energy
Sleep
Anxiety
Mood
Memory
Performance
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Pain & inflammation
Digestion
Libido
Hormones
Heart & lipids
Skin & hair
Longevity
Research
Any
Moderate or strong
Strong only
3 results
1
56
Ephedrine
Substance
Energy
Focus
Performance
100%
report better
Performance
3 reports
Mixed
A
Research: Strong
2
52
Caffeine
Substance
Energy
Focus
Anxiety
95%
report better
Performance
20 reports
Mixed
A
Research: Strong
3
34
Nicotine Gum
Substance
Focus
Energy
Anxiety
50%
report better
Performance
2 reports
Mixed
A
Research: Strong
Best substances — ranked by user results & research — PlainPill