Considering a pre‑workout? Read this before you buy

Here’s the quick take: check the caffeine per scoop, decide between stimulant or stim‑free, look for well‑dosed pump and focus ingredients, and make sure the label is transparent. If you’re new to a stronger formula, start with half a scoop to assess tolerance. GNC teammates can help you compare options side‑by‑side in store.

What to look for on the label

• Energy: Note total caffeine per serving (many land around 150–300 mg). If you prefer smoother energy, some products combine fast and extended‑release sources.
• Pumps: Look for L‑Citrulline (often 6–8 g as L‑Citrulline or Citrulline Malate), glycerol, or Nitrosigine.
• Focus: Common picks include L‑Tyrosine and choline sources.
• Performance: Beta‑alanine (often ~3.2 g) and betaine are frequently used.
• Transparency: Open, non‑proprietary labels make it easy to compare dosing.
• Flavor & mixability: If taste matters, scan reviews for phrases like “mixes easily,” “not too sweet,” or “no gritty aftertaste.”
• Timing: 20–30 minutes before training works for most. Avoid doubling up with other caffeinated drinks.

Use these checkpoints to compare labels against similar options at GNC.

How a pre-workout might fit your routine

• Prefer maximum urgency? Compare caffeine and focus blends to high‑energy options.
• Train late or want versatility? A stim‑free pump product can be used day or night or stacked with a lighter caffeine source.
• Sensitive to tingles? Beta‑alanine can cause a harmless tingling sensation. If you don’t enjoy that feel, choose a formula without it or go stim‑free and add pump ingredients only.

GNC can help match you to the right format—stim, non‑stim, or a stack—based on when you train and how you like to feel.