My partner's business is the largest French retailer of "parapharmacie" - French cosmetics brands that only retail in pharmacies or stores run by qualified pharmacists. So (while he is a business man, not a scientist) he knows quite a bit about the cosmetics industry and (lucky me) I get to try any product I want any time, even brands my partner doesn't sell, as we're always trying the competition and looking at innovations.
So - insider information on amazing products that really work (some of these products may not be available in UK though):
Cleanser: Sensifluid by A-Derma
Body lotion: TriXéra by Avène
Toothpaste: Elgydium by Pierre Fabre (use a Braun electric toothbrush)
Handcream: Xerand by LaRochePosay
Footcream: Compeed
and, for everyday soaps and body washes, I use Dove which seems to me far better than any of the expensive pharmacy stuff.
NO products work for cellulite - neither creams nor pills. This is well known in the industry (but consumers are gullible so they keep on bringing out new products).