Olaplex No. 4 Bond Maintenance Shampoo, Repairs, Strengthens, & Nourishes All Hair Types, Adds Shine & Leaves Hair Feeling Soft, 250ml

Olaplex No. 4 has made a real difference to my hair., I have been using it now for over a year. After just a couple of washes, it felt much softer, smoother, and had a noticeable shine. My hair is usually a bit dry and not too healthy, but this shampoo left it feeling nourished and far easier to manage.You only need a small amount as it lathers up really well and the scent is clean and subtle.It is a bit on the pricier side, but the quality and results absolutely justify it, given that you only need to take a small amount and it lathers up well so it can last quite a while.I’ll definitely be sticking with it.

great product. Made my hair much healthier, and although it is expensive, you only need a little bit of the product as it bubbles up hugely, therefore you don't need a lot.

Brilliant!

You can feel the quality in this shampoo and yes, it’s not cheap but you are paying for a product that very little goes a long way.I use the size of a 20p piece in the palm of my hand and it lathers up into a luxurious foam. Hair is left shiny, smooth and my hairbrush glides through it.A 200ml bottle can last over 6 months if used sparingly, you do need to add a bit more water to get it to lather.Most beneficial when used with Olaplex No3 product first (pre shampoo treatment) and followed by No5 which is the conditioner.My hair was so dry and breakage was bad before using this product. I can now also go a day longer between washes, would recommend.

Honest review here. I'm growing my hair from a short bob and one side at the top is slightly heat damaged. I thought I'd try the pre treatment and shampoo to see if it helped first before I bought the conditioner and oil. I put the pre treatment on for 10 mins...then washed my hair twice with the shampoo (u need so little as it lathers like nothing I've ever know lol) I then used bed head heat protector (smells like strawberries and is very good!) - after the first use my hair felt thicker...glossier and in general just so healthy. Wasn't expecting it to come out so well tbh. So glad I bought it and yes worth every penny! If u thinking of buying it please don't hesitate. Game changer!

It’s quite expensive but I think it is worth it. You only need to use a very little and it lathers really well. I felt my hair looked slightly thicker and definitely a bit brighter. It’s not a miracle worker but it is one of the best I have tried.

lovely product. Only use a little - it lathers really well.

Super smooth texture, ketratin like parlour treatmentEven my husband uses it so its sort of unisex