DSIP

Buy DSIP UK – 10 mg vials

Looking for DSIP UK? Ultra Peptides supplies DSIP as a lyophilised research compound in 10 mg vials (10 mg for £24.99), dispatched from the UK the same working day when you order and pay before 2 pm. Delta sleep-inducing peptide – a nonapeptide first isolated from rabbit brain, studied in sleep and stress research.

What is DSIP?

DSIP (delta sleep-inducing peptide) is a nine-amino-acid neuropeptide first isolated in 1977 from the cerebral venous blood of rabbits in induced slow-wave sleep.

Its natural precursor and receptor are still not fully characterised, which keeps it an open research topic. It is supplied as a 10 mg lyophilised powder.

DSIP research overview

Researchers who order DSIP UK from us typically work in the following areas. All of the work summarised here is preclinical – cell-culture and animal-model research – and is not evidence of any effect in people.

Sleep architecture

DSIP has been studied for its influence on delta-wave (slow-wave) sleep in animal models, with mixed results across studies.

Stress and neuroendocrine research

Other work has examined DSIP in relation to stress hormones, LH release and thermoregulation.

For the primary literature, browse published studies on delta sleep-inducing peptide at PubMed.

DSIP specifications

Purity and independent lab testing

Every vial of DSIP UK is supplied at a minimum of 99% purity, measured by HPLC. We send batches to independent laboratories and publish the certificates on our lab reports page as they are issued. If you need the analysis for the batch you receive, email us your order number and we will send it.

Peptides are synthesised to the published sequence, lyophilised and sealed under controlled conditions, then stored cold and away from light until they are packed for dispatch.

Reconstituting and storing DSIP

DSIP arrives as a dry, lyophilised powder. Most researchers reconstitute it with bacteriostatic water, adding the diluent slowly down the inside of the vial and swirling gently rather than shaking. Use our reconstitution calculator to work out the concentration for the volume you add.

Unopened vials keep best frozen at −20 °C, or in the fridge at 2–8 °C for shorter periods, always protected from light. Once reconstituted, keep the solution refrigerated and avoid repeated freeze–thaw cycles – splitting it into aliquots helps. Our storage guide covers shelf life in detail.

Often researched alongside: Selank.

Laboratory handling checklist for DSIP

• Let the sealed vial reach room temperature before opening, so moisture does not condense on the powder.
• Wipe the rubber septum with 70% isopropyl alcohol and work on a clean surface.
• Add the diluent slowly down the inside wall of the vial and swirl gently until the powder has dissolved – do not shake.
• Label the vial with the concentration, the date of reconstitution and the batch number.
• Keep reconstituted solutions at 2–8 °C, protected from light, and use them within the stability window of your protocol.
• Record lot numbers in your lab notebook so results can be traced back to a specific batch.

Why order DSIP UK from Ultra Peptides

• We are a UK supplier: everything ships from inside the UK, so there are no customs delays or surprise import charges.
• Independent laboratories test our batches, and the certificates are published openly rather than hidden behind a request form.
• Orders paid before 2 pm on a working day are dispatched the same day with tracking.
• We sell direct only – never through Amazon, eBay or marketplaces – so every vial comes straight from our own stock.
• Real people answer emails, usually within one working day.

Buying DSIP UK: delivery and payment

Every DSIP UK order is dispatched from the UK – no customs checks, import duties or border delays. Orders paid before 2 pm on a working day leave the same day by Royal Mail Tracked 48 and usually arrive within 1–3 working days. Delivery costs £4.99, and it is free on orders over £100, together with a free insulated storage box.

Parcels are packed in plain outer packaging with no branding or product names. You can pay by UK bank transfer – we email our account details after you order – or with USDC, USDT or Bitcoin. We never ask for or store card details. Ordering for a lab or institution? See our wholesale pricing.

DSIP is supplied for in vitro laboratory research only. Not for human or veterinary use. Buyers must be 18 or over and confirm research use at checkout.