Syntholix protocol
Syntholix works best on smaller muscle groups — arms, shoulders, traps and calves — and can also be used on quadriceps and lats. The schedule below is our suggested framework for controlled, natural-looking results.
Days 1–10
1 mL
Per muscle head. Let the area adapt to the volume.
Days 11–20
1.5 mL
Per muscle head. Shape becomes visible in this block.
Days 21–30
2 mL
Per muscle head. Peak volume phase — hold the schedule.
All volumes are per muscle head, per day. Never concentrate a full dose in one spot.
Placement matters more than volume. Follow the head-by-head guidance below to keep shape balanced and natural.
2 heads — short (inner) & long (outer)
The short head sits closer to your body, the long head on the outside of the arm. Apply Syntholix equally to both heads so the natural peak and sweep of the biceps are enhanced together rather than pushed to one side.
Even split across both heads.
3 heads — long, medial & lateral
The long and medial heads sit at the back of the arm, long on top and medial below it. The lateral head sits on the front outer portion of the arm. For the most natural result, apply to the long and lateral heads only.
Long + lateral heads only — skip the medial.
3 deltoids — front, lateral & rear
The goal is round, bold shoulders. Look at your delts and identify which ones are lagging. Apply to every deltoid, then add an extra 0.5 mL to the ones that need to catch up.
+0.5 mL on lagging deltoids.
2 heads — medial & lateral
Apply evenly across both heads to keep the calf symmetrical from the front and back. Calves are a sensitive area, so start lower than the standard schedule and build from there.
Start at 0.5 mL per head.
This information is provided for educational purposes only and is not medical advice. Consult a qualified healthcare professional before use.
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