Brain control of energy homeostasis: implications for anti-obesity pharmacotherapy

Here's how to do it right: WRONG technique (common mistakes): Tilting head back (solution drips down throat) Sniffing hard immediately after spray (bypasses absorption) Spraying too fast (nose can't absorb volume) Using only one nostril (saturation limits absorption) Spraying with head in wrong position CORRECT technique (follow exactly): Step 1: Preparation Blow nose gently (clear passages) Let nasal spray warm to room temperature (5 min from fridge) Shake bottle gently Prime pump if not used recently (2 sprays into air) Step 2: Head position Stand or sit upright Tilt head SLIGHTLY FORWARD (not back!) This is critical - prevents throat drainage Keep spray bottle upright Step 3: Spray technique Insert nozzle into one nostril (shallow, not deep) Close other nostril with finger Breathe in GENTLY through nose Press pump firmly (one spray) DO NOT sniff hard - gentle breath only Step 4: After spray Keep head slightly forward for 30-60 seconds Breathe normally through mouth Let peptide absorb into nasal mucosa Avoid sniffing deeply (reduces absorption) Avoid swallowing immediately Step 5: Alternate nostrils Wait 1-2 minutes Switch to other nostril Repeat spray technique Distribute dose across both nostrils Example: 4 total sprays = 2 per nostril Complete dosing sequence example (4mg PT-141): Spray 1: Right nostril hold 1 minute Spray 2: Left nostril hold 1 minute Spray 3: Right nostril hold 1 minute Spray 4: Left nostril hold 1 minute Total time: ~5 minutes Total dose: 4mg Why this matters: Wrong technique = swallowed peptide = destroyed in stomach = zero effect Correct technique = nasal absorption = systemic effect = money well spent Technique difference is success vs complete failure Timing and frequency When to dose: Empty stomach preferred (no food in nose, but general absorption better) Time relative to desired effect (e.g., PT-141: 1-3 hours before) Consistent timing if daily dosing Before bed common for cognitive peptides How often: Depends on peptide and half-life PT-141: As needed (hours before activity) Semax: 1-3 times daily typically Follow peptide-specific protocols Consistency matters for daily peptides Avoiding tolerance: Some peptides build tolerance (use cyclically) Others fine for continuous use Peptide-dependent Generally: cycles better than continuous Take breaks periodically Dosing adjustments for nasal vs injection You can't use the same dose
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By utilizing the nasal passages for absorption, TB-500 offers potential research applications and benefits like: Tissue repair Wound healing Reduced inflammation The nasal spray is designed to be easily absorbed through the nasal mucosa, allowing for efficient delivery into the bloodstream
Bias in meta-analysis detected by a simple, graphical test
But retatrutide is not yet FDA approved

Hair Growth Disruptors and Hair Loss These factors can shorten the anagen phase , trigger premature telogen shedding , and weaken the hair follicle, leading to hair loss or thinning : Physical Stress on the Scalp Tight hairstyles (ponytails, braids, extensions) traction alopecia Aggressive brushing or frequent heat styling Overuse of harsh chemical treatments (bleaching, perms, relaxers) Emotional & Psychological Stress High cortisol levels from chronic stress can push hair into the telogen phase (telogen effluvium) Anxiety and sleep deprivation negatively affect follicle function Poor Nutrition Low protein intake hair is made of keratin (a protein) Deficiencies in iron, zinc, biotin, vitamin D, B12 , omega-3s Crash dieting or calorie restriction disrupts follicle energy supply Hormonal Imbalances High DHT (dihydrotestosterone) levels shrink follicles androgenetic alopecia Thyroid disorders (hypothyroidism, hyperthyroidism) PCOS (Polycystic Ovary Syndrome) in women Menopause or postpartum hormonal shifts Medications That Affect Hair Growth Antidepressants (e.g., SSRIs) Blood pressure meds (beta blockers, ACE inhibitors) Isotretinoin (used for acne) Chemotherapy Birth control pills (starting or stopping) Lifestyle & Environmental Factors Smoking reduces blood flow to hair follicles Alcohol abuse interferes with nutrient absorption UV radiation from sun exposure damages the scalp Air pollution and toxins can cause oxidative stress on follicles Genetic Conditions & Autoimmune Disorders Alopecia areata : the immune system attacks hair follicles Lupus and other systemic inflammatory conditions Trichotillomania : hair-pulling disorder How Can I Stimulate Hair Growth
