Hello Welcome to Pherotalk !
Are you the slightly reserved type or do you take initiative ?? Do you work or are you a student, some more infromation about your personality, likes etc would be helpful in giving most sutiable recomendations and also to earn you a 25$ GC 
https://pheromonetalk.com/t/how-do-i-qualify-for-a-25-gift-certificate/19934
Anyways from what you have posted I assume that you are looking at standing out in a crowd and to attract the chicks…
I’d recommend the following pheros which you can use for work and for partying:
Instant gentleman, AMMO, TUTH, Instant Shine and Instant Honesty. If you are the shy type who has difficulty opening up a conversation, try Instant Openness instead.
Instant Gentleman .. it projects a prince charming vibe… successful and alpha yet youthful and non intimidating. it projects maturity but coupled with approachability. IG gives of all that alpha vibe without the intimidation of A314and girls love it. Especially at mid twenties, when one person stands out as more mature and reliable… most girls tend to single out him.
you can also get some instant shine and instant honesty for dates… shine gives a feel good mood to the wearer and those around him. so they tend to associate that feel good feeling to the wearer and ten to like him better.
Instant Honesty makes you feel connected to the wearer. it promotes deep conversation and connection. strongly recommended for first dates. use it together with instant gentleman
AMMO is the all purpose attractant which you can regularly use. it works as a cologne too but spray on your chest and wrists… not arm pit 
It is sexual but not very overt and offensive.. so you can wear it to work/college too… slowly work it up from one spray and find your sweet spot where you get best results… (I am 34 and use 2 sprays of heavy AMMO that 4 sprays of regular) in your case I dont think you may need more than 2 sprays of regular.. anyway try and find out for yourself cause everyone has different sweet spot depending on their individual body chemistry. AMMO signals virility and flirtiness & girls invariably react well to it. it also contains some pheros which aid communication… makes your task easier.
TUTH is a no apology come fuck me pheromone.. in the right circumstances it can give excellent results… say for example while you are with your regular girlfriend.. tuth can make her go wild. however using it at work and on first dates are not recommended.. the thing is it signals such a strong sexual presence.. that at school/college girls may think you are being creepy and similar thing can occur on first dates you dont want to send just sexual signal while meeting a woman for the first time.. however from drunken parties, it may work well when paired with instant shine and Instant gentleman 
In case you are the shy type, you should get Instant Openness instead of Honesty. Openness is all about of volume of communication while honesty is about depth and rapport. it makes you more inclined to talk more and those around you will also be inclined to talk more.. easy way to openup people
try a two sprays to the neck and a two to your wrists.
if you are already working in a professional setting A314 would be a good idea instead of Instant Gentleman… Do post more details about you so that me or others can refine of these recomendations