I have been using OGX Biotin & Collagen Shampoo. It gives my hair a fuller look. It's quite expensive but its worth it. The texture is thicker than regular shampoo, and the scent is mild.

This is a really good shampoo to thicken hair. It has a most unique scent. It smells powdery yet musky. I didn't like it at first but the scent grew on me as I continued to use the shampoo. It is a strong scent that stays in your hair all day long. My hair feels soft and manageable and definitely more volumized after use.

This shampoo and conditioner together are a perfect match and very effective with continuous use with strengthing hair strands and with hair growth. The quality is is salon like and leaves your hair feeling smooth soft and silky. It smells amazing and super easy instructions for washing and rinsing I would recommend this 1 million times over.

A little backstory…I have really fine hair that is starting to thin around my hairline and has no volume unless I curl or back comb it. I'm really picky with hair products because of that plus I color my hair. I'm not joking when I say this, but I noticed a difference after the first time I used this. My hair had volume that actually lasted. I had lift at the roots and I noticed even more volume when I curled my hair. It didn't mess with my coloring either and has a nice scent. The second time I used it, I still had great results.

This shampoo does the whole opposite of what it claims to do. My daughter had very thick hair and ever since she started to use this shampoo, her hair has gotten so thin and breaks so much easier. My husband, son and myself noticed that as well, but my daughter was the most affected by it.

OGX makes such good products. I personally love this kind for my hair type. I have medium thickness, long, straight hair. This is perfect for me. It leaves my hair feeling clean even when I only wash once a week. I think they are a great price, especially because you can almost always find coupons for this. The only annoyance I have is the bottles/lids are curved so you cannot leave them upside down to help with getting the product out.

I bought this recently, Oct 2025 only to find a new formula. Why??? It's thinner, doesn't lather as well, not rich and creamy and leaves hair flatter. The old formula you feel the body coming into your hair. After blowdrying using the new formula hair is less volumised. The hunt for a new shampoo begings I guess. Why do brands do this to stuff that worked. Won't buy it any longer after yrs of using it.

Used for about 3 months and lost about 59% of my hair. I wasn't sure if it was related but after seeing my hair stylist, she mentioned there were lawsuits associated with this exact shampoo and hair loss. I'm now seeing a dermatologist and am on medication and specialized shampoo to regrow my hair.

I really like this shampoo from OGX. The scent is so nice and fresh, it stays in my hair for a while after washing. The texture is creamy and feels gentle on the scalp. After using it a few times, my hair feels fuller, smoother, and easier to style. It gives a little bit of volume without drying my ends. The packaging is cute and easy to hold in the shower. For the price, it works really well — honestly, better than some more expensive brands I've tried. Definitely one of my favorite drugstore shampoos for keeping hair healthy and soft

The OGX Thick & Full + Biotin & Collagen Volumizing shampoo works wonderfully! It leaves my hair feeling thicker, fuller, and healthier without weighing it down. After just a few uses, my hair looked more voluminous and had great bounce. It smells amazing, lathers well, and rinses clean without leaving residue. Perfect for fine or flat hair, and a little goes a long way. I’m very happy with the results— I will never use anything else!