Compare Supplements

Side-by-side comparison of 2 supplements

Ser8.5

L-Serine

High safety

Pn8.5

Pregnenolone

Moderate safety

Evidence

Evidence Score8.5/10

Studies: 18

Meta-analyses: 2

Evidence Score8.5/10

Studies: 23

Meta-analyses: 4

Outcome Grades

Sharpen focusB

Healthy agingC

Sharpen focusB

Healthy agingC

A-F grade per outcome, combining overall evidence with goal-specific relevance. A = strong evidence; F = insufficient. Hover a badge for details.

Dosage & timing

Dosage:

Best Time:

Any time · with food (preferred)

Can take on empty stomach

Form:

L-Serine powder

Dosage:

5-50mg daily

Best Time:

Morning · with food

Can take on empty stomach

Form:

Micronized pregnenolone capsules

What you'll notice

🧠 Brain Support55%

4-8 weeks

🛡️ Neuroprotection50%

Ongoing

😴 Sleep Support45%

1-2 weeks

🧠 Cognitive Enhancement55%

2-4 weeks

😊 Mood Support55%

2-4 weeks

⚡ Energy Support50%

2-4 weeks

Safety

High safety

Contraindications:

Known allergy or hypersensitivity to L-Serine or related compounds

Drug Interactions:

Levodopa (L-DOPA) for Parkinson's
NMDA receptor modulators

Side Effects:

GI upset

Moderate safety

Contraindications:

Hormone-sensitive cancers
Seizure disorders (may lower threshold)

Drug Interactions:

Hormone medications
Sedatives
DHEA supplements

Side Effects:

AcneIrritabilityInsomnia

Works well with

Glycine

complementary

Phosphatidylserine

complementary

DHEA

complementary

How they work together

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