What if the most powerful beauty treatment is simply being deeply loved?
This 2009 study found that women who engaged in a closeness task with a partner experienced increased salivary progesterone-a key hormone linked to fertility, youth, beauty and emotional stability.
Think lowered cortisol. Increased relaxation and cellular regeneration.
The participants who felt interpersonal closeness, even just briefly, had significantly higher levels of progesterone than those doing a neutral task.
And that’s not just a mood booster: Progesterone improves skin, hair, mood, metabolism, brain function, sleep, longevity overall (one of the most protective substances in the known universe!)— and yes, it genuinely makes you look and feel more beautiful. It’s the hormone of safety, softness, regeneration and living longer.
Low progesterone is tied to anxiety, weight gain, inflammation, infertility, poor skin, PMS, cancer and living shorter. And guess what lowers it? Chronic stress, loneliness, and emotional isolation (to name a few).
The right relationship (the one where a woman feels safe, adored, and cherished) is biologically reparative. This is real and measurable. This is literal science.
The “glow” isn’t imagined, my lovelies. We can actually measure it.
Progesterone enhances beauty.
That soft, balanced, radiant appearance reflects a body running on safety signals: high progesterone, low cortisol, efficient energy production.
More often than not, being deeply loved is the most pro-metabolic state of all. (For everyone else, there’s always Ray Peat’s Progest-E ;))
