The hydra flex treatment regime kit includes all three hydra flex products hydra flex polish remover 50ml hydra flex serum 12ml and hydra flex protective shield 12ml healthy nails like a healthy body are hydrated and supple loss of moisture and flexibility means they can become brittle crack and flake hydra flex helps re balance and re hydrate damaged nails to promote a healthier more youthful appearance problem nails can occur at any time but anyone over 40 is more likely to exp