DSIP is a small natural peptide named for its early link to deep sleep. A few small, old studies hinted it might improve sleep in poor sleepers, but results were never reliably reproduced, and other claims rest on animal work. The evidence is thin and unsettled; it remains an unapproved experimental compound. (Full Review)

Protocol

Dose

100–300 mcg

Subcutaneous injection; no medically established protocol

Timing

Before bed

Commonly 30–60 minutes prior; short half-life of ~15 minutes

Schedule

Short courses

Single pre-bed dose, not continuous; twice-daily can blunt benefit

Time to effect

Initial sleep effect

Same night

Early human work reported effects on the same night

Buildup in insomniacs

First several nights

Buildup over the first several nights in chronic insomniacs

Sleep normalization

After ~4 doses

Sleep structure reportedly normalizing; benefit within days, not weeks

Benefits

Low: Improved sleep in chronic insomnia; reduced symptoms during withdrawal states

Speculative: Stress resilience and antistress protection; antioxidant and longevity-related effects; anticonvulsant activity; neuroprotection and recovery after stroke

Contraindications

Pregnancy (any trimester) or breastfeeding

Hormone-sensitive conditions (active estrogen- or androgen-receptor-positive cancers, untreated thyroid disease)

Symptomatic low blood pressure (resting systolic <90 mmHg) or history of fainting

Anyone unwilling or unable to verify product quality

People seeking an approved, regulated therapy

Key Interactions

Prescription sedatives, sleep medications, or benzodiazepines (diazepam, lorazepam)

Over-the-counter sleep aids and antihistamines (diphenhydramine, doxylamine)

Sleep-promoting supplements (melatonin, magnesium, valerian, L-Theanine)

Alcohol and other central nervous system depressants

Risk & Side Effects

Low: Unverified product quality and contamination; mild injection-related and sedative effects

Speculative: Unknown long-term and hormonal effects; altered dream activity; theoretical vasomotor and blood-pressure effects

Monitoring

Marker	Target	Why
Morning cortisol	~10–15 µg/dL	Screens stress-axis function before/after use
Comprehensive metabolic panel (CMP)	Within lab reference	General organ-function safety screen
Complete blood count (CBC)	Within lab reference	Baseline health and infection screen
High-sensitivity CRP (hs-CRP)	< 1.0 mg/L	General inflammation marker

Cadence: Baseline before starting; reassess subjective sleep and well-being at 1 week and 4 weeks, then every 3–6 months if use continues

Qualitative Assessment

Sleep quality and feeling of restedness on waking
Time to fall asleep and number of awakenings
Daytime energy, alertness, and cognitive clarity
Dream vividness or changes
Any injection-site redness, pain, or swelling

DSIP for Health & Longevity

Protocol

Benefits

Risk & Side Effects

Monitoring

Qualitative Assessment