The number of cluster-flare lashes you should apply per eye depends on your preference, eye size, and the look you want to achieve. Here are some general guidelines:
1. **Natural look**: For a subtle, everyday look, you can start with one or two clusters on the outer corner of your lash line, focusing on the outer corner and the outer half of the lash line. This will add some volume and definition without being too dramatic.
2. **Medium volume**: For a defined yet not overly voluminous look, apply three to four clusters evenly spaced across the lash line. This will enhance your natural lashes without being too overpowering.
3. **Dramatic effect**: For a bold, full-clustered look, you can wear multiple clusters on each side of the lash line, creating a gradient effect from the outer to the inner corner. This can create a more dramatic, winged, or "cat-eye" look.
4. **Customization**: Some cluster-flare lash strips may have different patterns or spacing, so follow the manufacturer's specific application instructions.
Remember to apply the lashes gently, starting from the inner corner and working your way out, ensuring that the clusters sit well together and blend seamlessly with your natural lashes. It's always a good idea to practice on a small section of your lash line before applying the complete set to get comfortable with the placement and look.
Ultimately, the key is to balance the dramatic effect you want and the natural look that suits your style.