# COSRX Aloe 54.2 Aqua Tone-up Sunscreen SPF 50+ PA++++ 50ml

COSRX Sunscreen, 50ml, built on Butylene Glycol.

- Price: $15.00
- Availability: In stock

## Key benefits

- On this formula's own list, Butylene Glycol shows up near the top. It is a multifunctional glycol that carries moisture and helps preserve the formula.
- This one's ingredient list carries Niacinamide in the first half, a brightening, sebum-regulating amide that also reinforces the skin barrier.
- Sodium Hyaluronate sits toward the end of the list on this product's own ingredient list, a low-weight hyaluronate that draws water into the surface layers.

## How it works

This sunscreen from COSRX leads with Butylene Glycol, a multifunctional glycol that carries moisture and helps preserve the formula. Further down the list sits Niacinamide and Sodium Hyaluronate, rounding the formula out. It is formulated and sold here as the Korean-market version, the same formula stocked in Korea, rather than a US-shelf reformulation, and it slots into a routine at the sunscreen step, used consistently rather than as a one-off treatment.

## How to use

1. Use the Aloe 54.2 Aqua Tone-Up Sunscreen as the last step of the morning routine, over moisturizer, or in place of foundation.
2. Apply an appropriate amount on skin at the last step of AM skincare routine.
3. Moisturizer first, this last. Powder or blush can go over it once it has set for a minute.
4. Every morning you want the finish. Do not apply it in one thick pass to get more cover; two thin layers sit flatter and last longer.

## FAQ

### Is this the same formula sold in Korea, or a US-reformulated version?

This is COSRX's Korean-market formula, the same version sold in Korea, not a separate US-shelf reformulation. and the Korean-market packaging and batch coding stay intact on the unit you receive.

### What does Butylene Glycol do in this formula?

Butylene Glycol is a multifunctional glycol that carries moisture and helps preserve the formula. It appears on this product's own ingredient list, and its position on that list reflects how the formula is built around it.

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Page: https://korean-pharmacy.com/products/cosrx-aloe-54-2-aqua-tone-up-sunscreen-spf-50-pa-50ml