DSIP Delta-sleep-inducing peptide

DSIP (Delta Sleep-Inducing Peptide) is a small neuropeptide that has been studied for its role in promoting deep, slow-wave sleep. It is not a hormone and it is not anabolic, so it will not affect testosterone or muscle building directly. Most people use it to support sleep quality and recovery rather than for performance gains on its own.

As a guide only and not medical advice, common research protocols use 100 mcg to 200 mcg injected subcutaneously once daily before bed, with some going up to 300 mcg to 500 mcg. Beginners should start at the lower end and avoid exceeding 500 mcg per day. A typical run length seen in protocols is 4 to 6 weeks before reassessing.

Reported effects can include drowsiness, headache, dizziness and nausea, most of which relate to the dose and timing rather than long-term use. Because the peptide is designed to promote sleep, some grogginess the following morning is not unusual. Anyone on other medication or with existing sleep or health conditions should speak to a doctor before starting.

No. DSIP is a standalone peptide with no mandatory on-cycle or post-cycle support, since it does not suppress natural hormone production. It can be paired with recovery peptides such as BPC-157 or TB-500 for added healing and sleep benefit, but this is optional and not required.

Yes, every vial we sell is genuine Syncom Labs product with a verification check-code on the box so you can confirm authenticity on arrival. Orders are dispatched from the UK on Royal Mail Tracked 24 in plain, discreet packaging, and most customers receive their parcel within 1 to 2 working days.

Orders placed and paid for before midday on a working day are dispatched the same day. Everything ships from our UK warehouse using a tracked service, so you get a tracking number as soon as it leaves us and can follow it through to delivery.