Also sold as Delta Sleep-Inducing Peptide
For 100mg of DSIP, the lowest total is FirstForm Peptides at $161.17 ($1.53 per mg, as 7 × 15mg), including its multi-vial discount, code PLUG (10% off) and $15 shipping. Next: Crush Research at $173.19, then PeptidePlugs at $216. We track 12 vendors carrying it.
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| Vendor | 10mg | 100mg | Per mg | Codes applied | Testing |
|---|---|---|---|---|---|
| FirstForm Peptidesprofile | $50.99 | $161.17 ships 105mg: 7 × 15mg | $1.53 | PLUG 10% + B2G1 buy 2 get 1 free |
Purity, Endotoxin, Metals |
| Crush Researchprofile | $35.49 | $173.19 | $1.73 | PLUG 10% |
Purity, Endotoxin, Metals |
| PeptidePlugsprofile | $56 | $216 | $2.16 | PLUG 10% first order only |
Purity, Endotoxin, Metals* |
| Puratek Peptidesprofile | $38.44 | $220.18 | $2.20 | THEPEPTIDEPLUG 10% |
Purity, Endotoxin, Metals* |
| Regenerative Researchprofile | $46.95 | $221 | $2.21 | PLUG 15% |
Purity, Endotoxin, Metals* |
| Blank Peptidesprofile | $40 | $235 | $2.35 | BLACKFRIDAY 50% + PLUG 10% |
Purity, Endotoxin |
| Glacier Aminosprofile | $68.98 | $239.96 | $2.40 | PLUG 10% |
Purity, Endotoxin, Metals |
| Orbitrexprofile | $48.48 | $271.93 | $2.72 | PLUG 15% |
Purity, Endotoxin, Metals* |
| Peptide Supply Coprofile | $48 | $282 | $2.82 | PLUG 10% |
Purity, Endotoxin* |
| Real Peptidesprofile | $48.35 | $307.20 | $3.07 | — | Purity, Endotoxin* |
| Modern Aminosprofile | $59.10 | $405.72 | $4.06 | PLUG 10% |
Purity, Endotoxin, Metals* |
| Peptide Partnersprofile | $77.40 | $549 | $5.49 | PLUG 10% |
Purity, Endotoxin, Metals |
Totals come from the same optimizer as our comparison tool: each vendor's cheapest way to supply the amount, with its multi-vial and mix-and-match discounts, the discount codes we hold for that vendor, and shipping to the US. Vendors reach each amount with whatever vial sizes they sell, and a vendor without a matching size may ship slightly more. Codes marked "first order only" assume a first order. "Per mg" is for the 100mg total. Confirm the final price at checkout. *Testing marked with an asterisk is present on some batches, not all.
Buy at FirstForm Peptides — code PLUG → See the full breakdown →| Strength | Vendors | Single vial | 10-vial kit | Per mg (kit) |
|---|---|---|---|---|
| 5mg | 2 | $29.15 · Real Peptides | $182.75 · Real Peptides | $3.65 |
| 10mg | 9 | $35.49 · Crush Research | $173.19 · Crush Research | $1.73 |
| 15mg | 1 | $50.99 · FirstForm Peptides | $206.95 · FirstForm Peptides | $1.38 |
| 30mg | 1 | $64.65 · Crush Research | $526.50 · Crush Research | $1.75 |
Each strength is priced using only that vial size (single vials or packs of it), the same as choosing that size in the comparison tool. Totals include multi-vial discounts, our discount codes and US shipping.
It depends on how much you buy, because most vendors discount multi-vial orders. For 10mg, Crush Research is lowest at $35.49 total. For 100mg, FirstForm Peptides is lowest at $161.17 total ($1.53 per mg), including its multi-vial discount, code PLUG (10% off) and $15 shipping.
For 100mg, the lowest total overall — FirstForm Peptides at $161.17 — is also from a vendor that publishes endotoxin testing on every batch. 10 of the 12 vendors do.
DSIP is sold in 5mg, 10mg, 15mg and 30mg vials. 5mg × 10: Real Peptides at $182.75 ($3.65 per mg); 10mg × 10: Crush Research at $173.19 ($1.73 per mg); 15mg × 10: FirstForm Peptides at $206.95 ($1.38 per mg); 30mg × 10: Crush Research at $526.50 ($1.75 per mg).
FirstForm Peptides, Crush Research, Glacier Aminos and Peptide Partners publish heavy-metals testing on every batch. PeptidePlugs, Puratek Peptides, Regenerative Research, Orbitrex and Modern Aminos publish it on some batches.
For 100mg, totals run from $161.17 to $549 across 12 vendors — $1.53 to $5.49 per mg — including each vendor's multi-vial discounts, our discount codes and shipping. Before any discounts, list prices run from $1.79 to $7.50 per mg.