Generally, you should use around 3–4 drops or a pea-sized amount of serum for your face.
Here's a breakdown:
- Quantity: A good rule of thumb is to use 3-4 drops or a pea-sized amount of serum.
- Coverage: This amount should be enough to lightly cover your entire face and neck, but avoid applying too much. The goal is light coverage, not a heavy coating.
- Potency: Serums are highly concentrated, so a small amount is usually sufficient.
- Reference: According to the reference, less is more when it comes to serums.
