solasscience.shop — COA-tested peptides with a clean, science-focused catalog. Free shipping on orders over $150. Specializes in GLP-1, GLP-2T (Tirzepatide), GLP-3R (Retatrutide), and nootropic/longevity compounds.
| Peptide | Size | Price | $/mg |
|---|---|---|---|
| Retatrutide (GLP-RT) | 15mg / 20mg / 30mg | $70 / $90 / $120 | $4.67 / $4.50 / $4.00 |
| Tirzepatide (GLP-TZ) | 30mg / 60mg | $65 / $98 | $2.17 / $1.63 |
| KLOW Blend | 80mg | $85 | $1.06 |
| GHK-Cu | 100mg | $50 | $0.50 |
| Melanotan II (MT2) | 10mg | $42 | $4.20 |
| Selank | 10mg | $38 | $3.80 |
| Semax | 10mg | $38 | $3.80 |
| NAD+ (buffered) | 500mg | $40 | $0.08 |
| Tesamorelin (TESSA) | 10mg | $70 | $7.00 |
Solas Science has some of the most competitive Tirzepatide pricing — $65 for 30mg ($2.17/mg) and $98 for 60mg ($1.63/mg) — which undercuts most vendors when normalized per milligram. Their NAD+ at $40/500mg ($0.08/mg) is also extremely competitive. No discount code means no additional savings, but their base prices are strong.
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Solas Science is a strong pick for Tirzepatide and Retatrutide buyers, with per-mg pricing that's hard to beat on larger vials. The KLOW blend and NAD+ are also excellent value. The curated 9-compound catalog means they don't carry everything, but what they do stock is priced aggressively.
Best for: Tirzepatide buyers prioritizing $/mg value, and researchers interested in nootropics like Semax and Selank alongside GLP-1 compounds.