The Brief.
Evidence-graded peptide guides — matched to age, sex, condition, and lifestyle. Plus head-to-head compound comparisons.
§02
By age & sex
The decade you're in changes which peptides have evidence behind them — and which are overkill.
- 01 · Age guide7 min
Men 20–29
Peptides for Men in Their 20s
Your 20s are your hormonal peak. Most peptides marketed to you are unnecessary. Two compounds — one to bank muscle, one for recovery — cover the actual evidence-backed cases.
ReadMAY 11, 2026 - 02 · Age guide8 min
Men 30–39
Peptides for Men in Their 30s
The decade where GH pulses begin to thin out and visceral fat creeps up. Three compounds — one each for muscle retention, fat loss, and recovery — cover the actual midlife-onset cases.
ReadMAY 11, 2026 - 03 · Age guide9 min
Men 40–49
Peptides for Men Over 40
The decade where visceral fat, joint reserve, and libido all start asking for attention at once. Three compounds — fat loss, recovery, sexual health — cover the dominant midlife signals.
ReadMAY 11, 2026 - 04 · Age guide9 min
Men 50–59
Peptides for Men Over 50
Maintenance becomes the project. Three compounds — longevity, libido, recovery — address the dominant signals of the decade without overshooting.
ReadMAY 11, 2026 - 05 · Age guide9 min
Men 60+
Peptides for Men Over 60
Longevity is the through-line. Three compounds — thymic, longevity, recovery — focus on system maintenance over growth signaling, with the safety screening to match.
ReadMAY 11, 2026 - 06 · Age guide7 min
Women 20–29
Peptides for Women in Their 20s
Skin quality and acute mood support are the two real cases for women in their 20s. The rest is marketing.
ReadMAY 11, 2026 - 07 · Age guide8 min
Women 30–39
Peptides for Women in Their 30s
The decade where collagen, metabolic flexibility, and recovery all begin shifting at once. Three compounds — skin, fat, recovery — cover the real cases without overshooting.
ReadMAY 11, 2026 - 08 · Age guide9 min
Women 40–49
Peptides for Women Over 40
The decade when fat redistributes, skin thins, and perimenopause begins quietly. Three compounds — fat loss, skin, longevity — match the dominant shifts.
ReadMAY 11, 2026 - 09 · Age guide9 min
Women 50–59
Peptides for Women Over 50
Menopause reshapes the protocol. Three compounds — longevity, skin, sleep — address the dominant complaints of the decade.
ReadMAY 11, 2026 - 10 · Age guide9 min
Women 60+
Peptides for Women Over 60
Cognitive and immune maintenance lead the protocol. Three compounds — longevity, immune, cognitive — focus on healthspan rather than performance.
ReadMAY 11, 2026
§03
By life stage
Hormonal transitions reshape the protocol. Perimenopause, postpartum, low-T, and beyond.
- 01 · Life-stage9 min
Perimenopausal women
Peptides for Perimenopause
Perimenopause is the variability decade. Three compounds — sleep, fat, anxiety — address the symptoms that most disrupt daily function.
ReadMAY 11, 2026 - 02 · Life-stage9 min
Menopausal women
Peptides for Menopause
Post-transition, the protocol stabilizes. Three compounds — longevity, sleep, skin — address the persistent costs of the new hormonal floor.
ReadMAY 11, 2026 - 03 · Life-stage8 min
Postpartum women
Peptides Postpartum
After breastfeeding, three compounds address the persistent recovery deficits — soft tissue, skin, and anxiety — that pregnancy and childbirth leave behind.
ReadMAY 11, 2026 - 04 · Life-stage9 min
Men with low testosterone
Peptides for Low Testosterone
Peptides do not replace TRT — they complement it. Three compounds address libido, muscle, and GH-axis recovery alongside or instead of testosterone therapy.
ReadMAY 11, 2026
§04
By condition
Where peptides become first-line, not adjunct. PCOS, diabetes, obesity, insulin resistance.
- 01 · Condition8 min
Women with PCOS
Peptides for PCOS
PCOS combines insulin resistance, androgen excess, and ovulatory dysfunction. Two compounds — fat loss and skin — address the symptoms peptides reach without overstepping endocrine care.
ReadMAY 11, 2026 - 02 · Condition8 min
Diabetics
Peptides for Diabetics
GLP-1 receptor agonists are already standard diabetes care. Two compounds — incretin-class and tissue recovery — address weight, glucose, and the soft-tissue costs of chronic hyperglycemia.
ReadMAY 11, 2026 - 03 · Condition8 min
Insulin-resistant adults
Peptides for Insulin Resistance
Insulin resistance is the prediabetes window — where intervention has the highest leverage. Two compounds address the metabolic shift and the systemic aging signal it drives.
ReadMAY 11, 2026 - 04 · Condition8 min
Obese adults
Peptides for Obesity
GLP-1 and dual-incretin compounds have changed obesity treatment more in the last 5 years than the previous 40. Two compounds — incretin-class and joint recovery — match the medical and mobility load.
ReadMAY 11, 2026
§05
By training
Sport-specific recovery, hypertrophy, and compliance with tested federations.
- 01 · Training9 min
Bodybuilders
Peptides for Bodybuilders
Bodybuilding maps cleanly to three goals. One compound each for muscle, fat, and recovery — sized to the cycle phase, not the buffet.
ReadMAY 11, 2026 - 02 · Training8 min
Natural bodybuilders
Peptides for Natural Bodybuilders
Tested means almost every flashy compound is off the table. Three compounds — recovery, modest muscle, sleep — cover what's left and what's worth it.
ReadMAY 11, 2026 - 03 · Training8 min
Runners
Peptides for Runners
Running breaks the same tissues over and over. Two compounds — recovery and sleep — repair the load and protect the overnight rebuild.
ReadMAY 11, 2026 - 04 · Training7 min
CrossFitters
Peptides for CrossFitters
CrossFit's injury profile is broader than any other sport. Two compounds — soft-tissue repair and modest muscle support — match the daily-recoverable demand.
ReadMAY 11, 2026 - 05 · Training9 min
MMA fighters
Peptides for MMA Fighters
MMA's recovery demand spans soft tissue, brain, and sleep. Three compounds address the most damaging chronic exposures of the sport.
ReadMAY 11, 2026
§06
Aesthetic
Skin, body composition, and the looksmaxxing protocols that actually have mechanisms.
§07
By lifestyle
Students, founders, shift workers, military, veterans, and biohackers — protocols built for how you actually live.
- 01 · Lifestyle7 min
Students
Peptides for Students
Student life means sustained cognitive load and sedentary creep. Two compounds — cognition and metabolic support — address the dominant pressures.
ReadMAY 11, 2026 - 02 · Lifestyle8 min
Entrepreneurs
Peptides for Entrepreneurs
Founders trade sleep, stable mood, and cognitive reserve for company runway. Three compounds address the dominant trade-offs without amphetamine-class cost.
ReadMAY 11, 2026 - 03 · Lifestyle8 min
Shift workers
Peptides for Shift Workers
Rotating shifts and night work damage sleep, immunity, and cognition together. Three compounds address each axis of the circadian cost.
ReadMAY 11, 2026 - 04 · Lifestyle8 min
Active-duty military
Peptides for Active-Duty Military
Military life combines high physical load, cognitive demand, and unpredictable sleep. Three compounds address the dominant recovery axes — within service-member compliance constraints.
ReadMAY 11, 2026 - 05 · Lifestyle9 min
Veterans
Peptides for Veterans
Service leaves behind a recovery debt. Three compounds — tissue, longevity, cognitive — address the long-tail damage that surfaces years after separation.
ReadMAY 11, 2026 - 06 · Lifestyle8 min
Biohackers
Peptides for Biohackers
Biohackers want healthspan extension with measurable inputs. Two compounds — longevity and cognitive — represent the highest-leverage interventions for a self-tracked population.
ReadMAY 11, 2026
§08
Head-to-head comparisons
Compound vs. compound and stack vs. stack breakdowns. Same evidence rubric as every guide.
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