Does optimizing testosterone actually help women build muscle?

What did @alixawinn actually say?

Honestly, the transcript here is nearly useless. The audio captured is "I'ma keep having this life like a road this song Singing now loud and" which is clearly a song lyric, not the creator's spoken content. So we're working almost entirely from the caption, which makes real-time fact-checking harder than it should be.

From the caption, the core claims are: testosterone is a female hormone, optimizing it matters for women's gym results, and pairing that hormonal awareness with protein intake, calorie control, and a structured shoulder workout will produce better gains. The hashtags include "trt" and "testosteroneforwomen," signaling this isn't just fitness advice but a lean toward hormonal optimization framing.

Does the science back this up?

The claim that testosterone is a female hormone? Yes, that part holds up. Testosterone absolutely circulates in women and plays a documented role in muscle protein synthesis, libido, mood, and bone density. That's not a fringe idea.

The harder question is whether "optimizing" testosterone, a word that does a lot of work here, translates to measurably better gym results in women with normal testosterone levels. A 2019 systematic review by Huang and Basaria in Best Practice and Research Clinical Endocrinology and Metabolism found that testosterone therapy in women with documented deficiency improved sexual function and mood, but the evidence for muscle mass and physical performance gains in non-deficient women is substantially weaker. The muscle-building benefits are real when there's a deficiency. In eugonadal women, the picture is much murkier.

What did they get right, and where does it get shaky?

Credit where it's due: framing testosterone as a female hormone is genuinely useful pushback against the common assumption that it's exclusively a male hormone. Women produce testosterone in the ovaries and adrenal glands, and low levels are associated with fatigue, reduced muscle recovery, and decreased motivation to train. Davis et al. (2008, Menopause) documented these associations in perimenopausal women specifically.

Where this gets shaky is the implicit suggestion that women who aren't seeing gym results should look at their testosterone as a likely culprit, or that "optimizing" it is a straightforward lever to pull. The caption's pairing with TRT hashtags nudges viewers toward a clinical intervention without any discussion of what "low" testosterone actually means for women, how it's tested, or what the risks of exogenous testosterone are, including acne, hair loss, voice changes, and clitoral enlargement at higher doses. That's not a minor omission.

The protein and calorie advice is unambiguously solid. A 2017 meta-analysis by Morton et al. in the British Journal of Sports Medicine confirmed that adequate dietary protein is the primary nutritional driver of resistance-training-induced muscle hypertrophy. No controversy there.

What should you actually know?

If you're a woman who feels like your gym effort isn't matching your results, testosterone is one possible piece of the puzzle, but it's far from the first thing to investigate. Sleep quality, total caloric intake, training programming, and stress-related cortisol levels all affect muscle gain and recovery, often more directly than testosterone in otherwise healthy women.

If you genuinely suspect a hormonal issue, get a blood panel. Normal free testosterone ranges in women are roughly 0.5 to 2.4 ng/dL depending on lab and age, but interpretation requires a clinician who knows how to contextualize those numbers. Self-diagnosing "low testosterone" from a TikTok caption and seeking TRT without documented deficiency is a real risk. The Endocrine Society's 2019 clinical practice guidelines explicitly advise against testosterone therapy in women without a confirmed diagnosis of hypoactive sexual desire disorder or documented deficiency. Using TRT for gym optimization in the absence of deficiency is off-label, and the long-term safety data in women is limited.

The shoulder workout itself? Fine. Progressive overload with dumbbells works. That part needs no fact-check.