Our extra strength range is more for clients that have been having hair related problems for 5-10years , these clients tend to need double the strength 1.promotes hair growth 2.softens hair and beard 3.keeps the hair more manageable 4.Helps with thinning hair 5.helps with alopecia 6.adds volume to the hair 7.adds shine Makes it more manageable. Prevents hair loss due to breakage. Strengthens the hair shaft. Adds volume and strength to fine hair. Replenishes oils lost due to chemical processes. Our extra strength range is generally for clients that have been experiencing hair related problems for 5-10years, these clients generally need the extra boost Repairs damaged hair strands. Can prevent further damage to hair. Faster Hair growth