Avène
Cleanance emulsion lotion- This is part of the cleanance line which is meant for acne, or Avène likes to call it peaux jeunes à problèmes. This lotion has a gel consistency similar to the Clinique's Dramatically Different Moisturizing Gel, if you've ever tried it. I know many who have oily skin think that they don't need to moisturize because they think that using a moisturizer will make their skin even oilier but that's not true- you just need to find a moisturizer that will work for your skin. This one will help control the oil production, as well as mattify your skin.

Cleanance lotion purifiante- This is not your basic toner! You shake the bottle to mix the fluids which will help once again to control the oil that your skin makes. Unlike many toners on the market, the main ingredient in this toner is not alcohol which can make your skin dry out. Just like the cleanser, the toner will make your skin feel clean and refreshed. Use this with a cotton pad after cleansing your skin.
Crème 50+- I had used Avène sunblocks prior to coming to France because it's a brand that was recommended by my dermatologist in Tijuana so I knew I had to buy another Avène sunblock while I was in Paris. This one works particularly well for oily skin because it's meant to be for sensible skin and oily/acne prone skin is sensitive by definition. This sunblock is light and blends into the skin flawlessly. Avène has a great line of sunblocks and there's one to suit every skin type and lifestyle. If you're into tinted moisturizers and aren't too fussy about makeup, then the tinted version would probably be worth trying.
Vichy

You can also try the Vichy 24 Hour Deodorant Spray (Google Affiliate Ad) or Vichy 48 Hour Deodorant/Anti-Perspirant Roll-on - Xtra Strength (Google Affiliate Ad).

Bioderma
Créaline H2O peaux sensibles- If you follow the beauty blogger world then you've most likely have heard them rave about Bioderma créaline makeup remover. This makeup remover is by far the best one I've come across. It takes off everything including my waterproof mascara and it doesn't leave my face feeling oily, nor does it clog my pores. This makeup remover leaves your skin feeling refreshed and it literally dissolves makeup and impurities. I think it really lives up to the hype and I can see why this is a highly recommended products. This is the version for sensible skin but I know there's one specifically for oily skin on the market as well.
Gel douche Atoderm- I bought this after going through regular sized body wash like crazy. It comes in a huge bottle that will last you MONTHS! This body wash is again for sensitive skin, and it doesn't have odor or parabens which is a big thing in France. Just like the Avène cleanser, this one is also soapless so it won't be harsh on your skin. This body wash did a great job of not breaking me out in my chest area which is by far the most sensitive/body acne prone area in my body so if you occasionally get body acne this would be a good buy.

La Roche-Posay
Toleriane Fluide Dermo-Nettoyant- This product is intended for dry sensitive skin but it works fine with oily skin. I would use this after removing my makeup to remove any excess makeup that somehow survived Bioderma's Créaline. This is a very gentle cleanser, its not meant to foam up or anything. It's meant to be used with a cotton pad and can be rinsed out or not.
Where to buy:
If you're in France then you're in luck because you can walk into any French pharmacy or Parashop and you'll find these products. City Pharma has a lot of deals and discounts on skin care products so it's worth checking out. There's one in Saint-Germain-Des-Prés and another one outside the Tolbiac metro stop.
If you're in the U.S. Rite Aid now carries Vichy and La Roche-Posay but the prices are incredibly inflated. All the brands also have U.S. sites so you can find out info and locations there. I also know that French skin products are available in some Mexican pharmacies so you could also try looking there.
I'm thinking of doing another post like this but it'll about makeup so if you enjoyed this just let me know and I'll get started on it. Hope you enjoyed this break from hearing about school and other more serious topics.
Bonne journée !