← PeptideCruxMix Lab

Designer

Draft a new peptide, then sequence it.

Describe what you want a peptide to do and set your chemistry constraints. Our AI proposes candidate sequences, and each one is sequenced here, residue by residue - with charge, isoelectric point, hydropathy, a helical-wheel projection, a charge-versus-pH curve, degradation hotspots and a novelty check against the 113-compound index. You can edit any sequence by hand and watch every number update. These are hypotheses, not compounds: nothing here has been made or tested.

Chemical modifications to consider

A design run usually takes around a minute.

Important notice · Please read

No medical advice. PeptideCrux is an educational literature index. Nothing on this site is medical, clinical, diagnostic or treatment advice, and no material here establishes a doctor–patient relationship. Always consult a licensed clinician before acting on anything you read.

Investigational compounds. The majority of peptides indexed here are investigational research chemicals that are not approved by the FDA, EMA or any comparable regulator for human use. We do not sell, supply, source or recommend any compound, dose or protocol.

Accuracy. Summaries are our reading of the cited primary sources and may contain errors, omissions or outdated information. Citations are provided so you can verify every claim yourself. Linking to a paper is not endorsement of its conclusions.

Assumption of risk & hold harmless. You use this site entirely at your own risk and agree to release, indemnify and hold harmless PeptideCrux and its operators from any claim or loss arising from your use of this information. See the full disclaimer.

DisclaimerTerms of usePrivacyLast updated 4 September 2026