Ican use it even if I'm 58 years old?

Absolutely, advanced skin care products can be used at any age. A couple options from the search results that would work well for your 58-year-old skin are the L'Oreal Revitalift Laser Renew Advanced Anti-ageing Day Cream for R309.6 and the La Roche-Posay Hyalu B5 Serum for R725. The L'Oreal cream protects from UV rays and helps reduce signs of aging. The serum intensely hydrates and reduces the appearance of fine lines. Both contain hyaluronic acid which is gentle and great for mature skin. I hope one of these works for you! Let me know if you need any other recommendations.

I lost connection with someone I was talking to regarding Laroche Posay for blemishes

Thanks for reconnecting! Based on your skin concerns and age, I would recommend either the La Roche-Posay Effaclar Duo + Cream or Effaclar Duo SPF30 Serum. These light gel-cream formulations are great for blemish-prone skin of all ages. The Effaclar Duo + Cream contains niacinamide and lipohydroxy acid to unclog pores and calm breakouts, while the Effaclar Duo SPF30 Serum provides the same benefits with added sun protection. At R342 and R315 respectively, they are also very reasonably priced for high-quality skincare. Both options should help clear your skin without over-drying or irritation. Let me know if you have any other questions!