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Although there is a dearth of bioavailability data for many of the peptide nasal sprays, a study showed that direct intratracheal instillation of a lyophilized powder at high concentrations could achieve reasonable levels of systemic absorption [13]

How to Store Peptides Properly Powdered Peptides Store in the refrigerator or freezer Reconstitute only when ready to use Shelf life: Up to two years when stored cold Reconstituted Peptides Store consistently in the refrigerator Shelf life: Typically 36 months when handled properly Nasal Sprays and Creams Store consistently in the refrigerator Shelf life: Nasal sprays: 36 months refrigerated Creams: Approximately 6 months refrigerated Avoid repeated freezing and thawing whenever possible

Tominaga, T., Shimada, R., Okada, Y., Kawamata, T

Vitamin B6 contributes to the regulation of hormonal activity

Doc is no help, doesn't think that the jab is the cause