I Have really bad Kp and it’s taking a toll on my self esteem. Can you help?

I have never worn skirts, dresses or shorts outside it’s so embarrassing. I know the key ingredients i need are either Urea, Glycolic acid, Lactic acid or salicylic acid. I live in the uk and it’s pretty hard to find these in the 15%-20% range.

Thanks to this site i was able to figure out that some brands false advertise the % they have in their products. Ie:- Neostrata claim their lotion plus has 15% glycolic acid but the estimated concentration is 5.6-8.4%.

Can you recommend some products with either of these ingredients at 15%? I would really appreciate it. From all that i’ve tried Paulas choice body exfoliant 2% and REN body serum Aha, have both made a little difference but no difference to the dark spots. I have attached what my KP looks like. Any help will do thank you :)