What are your favorite budget-friendly vitamin C serums?

I'm still on a hunt and found these 4 options from watching a 💩 ton of YouTube & reading blogs and reddit threads
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It's not technically Vitamin C, but it helps with brightening and hyperpigmention. And stupid hydrating. Love this stuff... it's the De Palma Oil by Ode to Self Skincare. They're a new brand, but it's so dope!
Isn't that crazy??!!
Did you decide on one yet?! 😏
Not sure it it has vitamin C in it though
Glossier just dropped their new serum today!!