As expected, fresh-smelling fragrances are a popular pick. IMAGE Penhaligons, Descendants of the Sun/KBS 

The beauty of fragrance is that its effects are almost immediate. It's unlike skincare where you have to wait weeks to months to take effect, even when you're armed with a Korean celebrity's elixir to flawless skin. So whether you're on a hunt for a new scent or just want to know more about your favorite K-drama actress' beauty secrets, here are perfumes that the likes of Song Hye Kyo, Son Ye Jin, and more have in their vanity:

Park Min Young: Creed Love in White

What's Wrong with Secretary Kim's Park Min Young says she's been using this floral fresh scent for quite a long time now. In fact, she carries a huge refill of it in her bag, as revealed in one of her YouTube videos.

IMAGE What's Wrong with Secretary Kim/tvN, Creed 

TRY: Creed Love in White, starts at $230, creedboutique.com

Son Ye Jin: Chloé Eau de Parfum

It's said that this cult-favorite scent from Chloé is the Crash Landing on You star's pick, and we think it's a flawless choice. This perfume is a true classic, from the beribonned bottle to its fresh floral notes and elegant powdery dry down.

IMAGE Crash Landing on You/tvN, Chloe 

TRY: Chloé Eau de Parfum, price unavailable, Rustan's Department Stores

Hyeri: Jo Malone London English Pear and Freesia

This fruity-floral cologne is the Reply 1988 star's signature fragrance. She shares in a "What's in My Bag" vlog that even production staff refers to it as the "Hyeri scent"!

IMAGE Reply 1988/tvN, Rustan's 

TRY: Jo Malone London English Pear & Freesia Cologne, P4200, Rustan's

Seo Ji Hye: Goutal Paris Tenue de Soireé

Crash Landing on You and Dinner Mate actress Seo Ji Hye is a huge fan of scent layering, and considers the technique as one of her beauty secrets. In an interview, she showed the two bottles of Goutal Paris perfumes that she loves wearing together. She also posted a selfie with a bottle of the brand's Tenue de Soireé in 2017, describing it as a "sweet and sensual" scent that's totally her style.

IMAGE Dinner Mate/MBC, Goutal Paris 

TRY: Goutal Paris Tenue de Soireé Eau de Parfum, €102, goutalparis.com

Jun Ji Hyun: Goutal Paris Petite Cherie

A bottle of this fragrance was spotted on Cheon Song Yi's vanity in My Love From The Star, and since then, it's been popularly hailed as the actress' signature scent. Petite Cherie has prominent notes of peach, rose, and pear—an elegant fruity blend that we can definitely see Jun Ji Hyun wearing.

IMAGE My Love from the Star/SBS, Goutal Paris 

TRY: Goutal Paris Petite Cherie Eau de Parfum, €75, goutalparis.com

Song Hye Kyo: Penhaligon's Orange Blossom

After popular beauty program Get It Beauty revealed Orange Blossom as Song Hye Kyo's perfume, it quickly became a best-seller in Korea. Penhaligon's describes the experience of wearing it as "like strolling from a shaded grove into warm sunshine," thanks to its sweet citrus notes and the softness of white florals and vanilla.

IMAGE Descendants of the Sun/KBS, Penhaligon's 

TRY: Penhaligon's Orange Blossom, £110, penhaligons.com