While red carpet looks have always been an eye grabbing factor for global audiences, in the era of the Internet, the reactions they garner are like never before. From being absolutely roasted for a bad outfit to being kept on a pedestal for a good one, red carpet looks especially for a growing celebrity remain vital and therefore Sydney Sweeney never misses with them. However, the secret to her red carpet slays does not simply lie in the threads she wears, but also in the tresses she dawns.

With her not so secret weapon being her hair, so perfectly styled, that it makes netizens wonder if it has better agents than half of Hollywood, the man behind the masterpiece has revealed the secret ingredient that it makes it so.

Among the many luxury brands that Sydney Sweeney has wrapped around her curls, is Kérastase. Always the face of effortlessly gorgeous hair, the actress was an easy choice to be the brand's face. Following the collaboration earlier this year, Sweeney's hair game has only gotten better, and it is all curtsy of Glen Oropeza, and as per his revelation to US Weekly, a $30 Kérastase Elixir Ultimate Hydrating Hair Oil. 

That Oropeza's secret hair weapon, especially owing to his credibility having been her go-to hairdresser for a while, would be eaten by the Internet, is no shocker. A similar phenomenon wreaked havoc when Madison Beer revealed the secret to her fairy-like hair and the gloss behind it.

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While the majority of credit for Sydney Sweeney's iconic hair looks goes to Glen Oropeza, the actress herself is the mastermind behind some of her most iconic glam moments.

With Glen Oropeza being defined as the man behind the masterful locks and the success of her couture styles being attributed to Molly Dickson, it is easy to assume that the actress is but a muse of two artistic geniuses. However, Sydney Sweeney herself has a huge role to play in it and how the actress brought her own skincare routine to the table during the filming of the iconic 4 AM. Cassie Howard beauty routine. 

This was not the first or last time that the actress would partake in showcasing the ultimate glam-up process. Sweeney also has both hands dipped in Frankies Bikinis. After all, Kérastase cannot be the only one with the smoothest collaboration idea.

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Will you be buying the secret ingredient to Sydney Sweeney's hair? Let us know in the comments below.