Side-by-side, without the spin
Comparisons weigh two options against each other — evidence, safety, and practical trade-offs — using BioSignal's existing calibrated evidence. They orient a decision; they never invent new conclusions or grade evidence independently.
Interventions
Semaglutide vs Tirzepatide
GLP-1 vs dual GIP/GLP-1 for weight and diabetes
Tirzepatide vs Retatrutide
Approved dual agonist vs investigational triple agonist
Creatine vs Whey Protein
Strength and power vs muscle protein and intake
Statins vs Ezetimibe
First-line LDL lowering vs an add-on
Statins vs PCSK9 Inhibitors
First-line vs a powerful add-on for high risk
Metformin vs Berberine
A proven drug vs a popular supplement
SGLT2 Inhibitors vs GLP-1 Receptor Agonists
Two outcome-proven classes with different strengths
Statins vs Red Yeast Rice
A regulated drug vs an unregulated 'natural statin'
Ezetimibe vs PCSK9 Inhibitors
Two add-ons to a statin, very different in power and cost
Metformin vs GLP-1 Receptor Agonists
Cheap first-line vs powerful weight and outcome benefit
SGLT2 Inhibitors vs Finerenone
Two evidence-based kidney protectors in diabetic CKD
L-Theanine vs Caffeine
Calm versus stimulation — and why they're better together
Citicoline vs Alpha-GPC
Two choline donors — one better evidenced, one with a safety question
Psyllium vs Probiotics for IBS
The cheapest option has the best evidence
Psyllium vs Peppermint Oil for IBS
Bulk and regularity, or antispasmodic pain relief?
Testosterone Therapy vs Lifestyle
Treat the number, or treat the cause?
Hormone Therapy vs Non-Hormonal Treatment for Menopause
The most effective option, and the alternatives that are real
Levothyroxine vs T4/T3 Combination Therapy
A real problem, and an unproven solution
Antidepressants vs Exercise for Depression
The answer depends on how severe it is — and nobody says that
St John's Wort vs Antidepressants
Comparable in trials — and one of them can stop your contraception working
Retinoids vs Collagen Supplements
Two routes to the same promise — and a very large evidence gap
Vitamin C vs Zinc for Colds
Neither prevents one. One of them might shorten it.
Preventer vs Reliever Inhaler
One of them feels like it works. The other one is keeping you alive.
Asthma vs COPD
Both obstruct airflow. Almost everything else is different.
Biomarkers
Lifestyle
Walking vs Running
Accessible and sustainable vs time-efficient and intense
Resistance Training vs Aerobic Exercise
Strength and muscle vs cardiorespiratory fitness
Sleep vs Nootropics for Cognitive Performance
The intervention that works versus the one that's marketed
Zone 2 vs HIIT for Brain Health
Two routes to the same protective mechanism
Ashwagandha vs Sleep for Stress
A supplement with modest evidence, against the intervention that actually works
Sunscreen vs Anti-Ageing Skincare
The cheapest product in the aisle is the one with the randomised trial
Boosting Immunity vs Regulating It
You do not want a stronger immune system. You want a better-behaved one.