Juno was founded in 2026 around a single observation: every serious peptide protocol being studied for longevity, recovery, and skin repair has been researched almost entirely in male cohorts. Women between 35 and 55 experience the steepest hormonal shift of any adult life stage, and the industry has nothing built for it.
Between 35 and 55 a woman's body crosses an axis that changes almost every system the longevity industry is selling into. Estrogen and progesterone fall. Growth hormone drops by roughly 50%. Sleep architecture fragments. Tendon and joint recovery slows. Skin loses 30% of its collagen in the first five years after menopause. Visceral fat redistributes. Thermoregulation misfires.
The supplement industry responds by selling women collagen and adaptogens. The peptide industry responds by selling them the same stack it sells men, in the same dosing, in the same black-gym-bro packaging. Juno is the third option.
We source research-grade peptides from the same cGMP facilities that supply clinical trial material. We test every lot at an independent HPLC lab. We publish the certificate of analysis on every product page. We curate eight compounds specifically because they map to the axes that matter for female physiology in midlife — not because they're trending on a Reddit thread.
And we write like women who actually read the papers, because that's who built this.
Women between thirty-five and fifty-five who have noticed that the wellness conversation has either been infantilized or ignored them entirely. Who read studies. Who keep the vial on a marble counter because they care about the ritual, and the ritual deserves a beautiful object.
Juno was designed for this reader, front to back. The writing, the sourcing, the packaging, the cadence.
Our advisors review every sourcing decision, every peptide added to the catalogue, and every piece of research published on this site.
Twenty years studying the growth hormone axis and age-related hormone decline. Former NIH principal investigator.
Board-certified in internal medicine. Author of forty peer-reviewed papers on perimenopause, body composition, and metabolic health.
Formulation chemist, ten years at a Tier-1 cGMP peptide manufacturer. Oversees every sourcing decision for the Juno catalogue.
Every lot is tested at an independent lab. The certificate of analysis is attached to every product page and downloadable as a PDF.
Molecular weight confirmed via mass spectrometry. No peptide ships from our facility without its MS trace on file.
Synthesized and lyophilized in a cGMP-audited facility. The same sourcing used for clinical reference material.
Sequence, CAS, molecular formula, storage specs, and the full reference list live on every product page. Nothing hidden.