Overview
FOX04-DRI (also known as Proxofim) is a synthetic D-retro-inverso peptide designed for research purposes. It targets senescent cells through disruption of the FOXO4–p53 protein interaction, triggering programmed cell death in aged, dysfunctional cells while preserving healthy ones.
How It Works
The peptide blocks the FOXO4–p53 binding mechanism. In senescent cells, this disruption causes p53 to relocate to the mitochondria, initiating apoptosis. The D-retro-inverso configuration enhances stability and resistance to enzymatic degradation, making it suitable for longer-lasting effects.
Dosing Protocol
Standard Gradual Approach (3 mL reconstitution)
| Week | Daily Dose | Units (U-100 Syringe) | Volume (mL) |
|---|---|---|---|
| 1–4 | 250 mcg | 7.5 units | 0.075 mL |
| 5–8 | 375 mcg | 11 units | 0.11 mL |
| 9–12 | 500 mcg | 15 units | 0.15 mL |
| 13–16 | 500 mcg | 15 units | 0.15 mL |
Frequency: Once daily via subcutaneous injection
Duration: 8–16 weeks with gradual titration
Timing: Consistent daily administration; rotate injection sites to minimize irritation
Reconstitution Instructions
1. Draw 3.0 mL of bacteriostatic water using a sterile syringe
2. Inject slowly along the vial wall to avoid foam formation
3. Gently swirl or roll until completely dissolved (avoid vigorous shaking)
4. Label the vial and refrigerate immediately
Resulting Concentration: ~3.33 mg/mL (makes unit measurements straightforward on insulin syringes)
Storage Guidelines
Lyophilized (powder):
– Store at −20 °C (−4 °F) or colder
– Keep in dry, dark conditions
– Minimize moisture exposure
After Reconstitution:
– Refrigerate at 2–8 °C (35.6–46.4 °F)
– Use within 1 month
– Protect from light
– Avoid repeated freeze-thaw cycles
– For extended storage, aliquot into single-use vials and freeze
Supplies Needed
For 8–16 Week Protocol
FOXO4-DRI Vials (10 mg each):
– 8 weeks: 3 vials
– 12 weeks: 4 vials
– 16 weeks: 5 vials
Insulin Syringes (U-100):
– 8 weeks: 56 syringes
– 12 weeks: 84 syringes
– 16 weeks: 112 syringes
Bacteriostatic Water (10 mL bottles):
– 8 weeks: 1 bottle
– 12 weeks: 2 bottles
– 16 weeks: 2 bottles
Alcohol Swabs (100-count boxes):
– 8 weeks: 2 boxes
– 12 weeks: 2 boxes
– 16 weeks: 3 boxes
Injection Technique
– Use sterile, new insulin syringes (29–31 gauge, 0.5 inch needle) for each injection
– Clean injection site and vial stopper with alcohol swab; allow to dry completely
– Pinch a skinfold and insert needle at 45–90° angle into subcutaneous tissue
– Inject slowly and steadily
– Do not aspirate before injecting for subcutaneous administration
– Release the pinch and withdraw; apply gentle pressure if bleeding occurs
– Rotate sites systematically: abdomen, thighs, upper arms (at least 1 inch apart)
– Dispose of sharps in designated container
Potential Benefits (From Preclinical Research)
– Selective clearance of senescent cells in various tissues
– Improvements in tissue regeneration and reduced inflammation
– Enhanced organ function following senescent cell removal
– In aged mice studies, improvements in testosterone levels and cellular health markers
Side Effects & Considerations
– Injection-site reactions: Mild redness or irritation may occur with subcutaneous administration
– No human clinical data: Safety and efficacy in humans remain uncharacterized
– Research-only status: Not approved for human consumption or medical use
Lifestyle Factors for Optimal Outcomes
– Maintain balanced, nutrient-dense diet rich in antioxidants
– Incorporate regular resistance training and cardiovascular exercise
– Prioritize quality sleep and stress management
– Stay adequately hydrated
– Avoid smoking and excessive alcohol consumption
Important Notes
– Document daily doses and injection sites for consistency tracking
– Consider 30- or 50-unit insulin syringes for enhanced readability when administering ≤10 units
– Allow lyophilized vials to reach room temperature before opening to reduce moisture uptake
– This protocol is for educational and research purposes only, not medical advice
– Not intended for human consumption
Disclaimer
This content is educational material only and does not constitute medical advice, diagnosis, or treatment recommendations. Always consult qualified healthcare professionals before beginning any research protocol.