Fertility assisted lubricants are like anything else including vitamins, or fertility medication that we need to take to assist getting pregnant.
Most likely a lady with not the best, or no CM present at all would greatly benefit from using a fertility lubricant - myself included. I had no cervical mucus at all, used C+ and boom - pregnant.
It also be ideal for someone who's OH has low morphology, and cannot move as well as other men's sperm through the cervix and to the egg.
People using C+ or Pre seed that already have EWCM may be needing assistance else where hense why the lubricant may not work for them. Everyone is different, and sometimes some ladies needs that aid from somewhere.
Good luck on whatever you decide on buying - both have amazing results.
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