Yes, if you are going to avoid Sodium Lauryl Sulfate (which is what creates the foam in shampoo, shower gel and facial washes) you may find that some products are lacking on the foaming front. Which personally makes me use more of product to compensate...not a good thing when you are spending that bit more on shampoo and shower gel to avoid SLS.
If you haven't got a clue what I am going on about and wondering why you would want to avoid Sodium Lauryl Sulfate or SLS (which if you look, is found in nearly 99% of all shampoos) it's because in the chemical world it's actually classed as a skin irritant and isn't good for your skin, hair or health. If you want to know why I personal stopped using normal shampoo you can read the post on it here.
I have now been using only SLS free shampoo for over 5 months now and my hair is so much stronger and not frizzy or dry for once. *UPDATE July 2015: I've now been 5+ years SLS-free!*
Anyway I could ramble on all day but basically I have tried quite afew SLS-free shampoo and shower gels to find the right 'foam factor' so I thought I would share the ones I love and also compare them to normal products that contain Sodium Lauryl Sulfate.
So first here is a sexample of the foam factor for the Herbal Essences Beautiful Ends shampoo which was actually WHY I started to use only SLS free products - The product above caused me to have a bad reaction on my scalp and I later realized (which is why I have decided to tell you all) it contains both Ammonuim Laureth Sulfate and Ammonuim Lauryl Sulfate, the strongest type of sulfate there is! Says alot...you will rarely see this ingredient in any shampoo and there's a reason for it. It of course foams up due to the SLS.
As for SLS-free shampoos there aren't many on the market which if you use them I am sure you know already! The cheapest and most widely available brand in the UK has to be OGX, found it Boots and Tesco for around £6.99 per 385ml bottle. Not all the shampoos are SLS-free I should point out, so you still need to check. But these shampoos foam amazingly well. Alternatively L'Oreal Ever range is SLS-free. Both shampoos are always in my shower! Higher end with my favourite SLS free shampoo is the Tigi Bed Head Superstar Shampoo which you can see above. It foams up even more than a normal shampoo and smells so so good. You can find this online or most hairdressing salons sell it for about £9.00, however be careful as not all of the shampoos in the Bed Head range are SLS-free.
Next I want to take about Shower gels...the reason why I started to only use SLS free shower products was because I started to see a dramatic improvement in the little lumps on the backs of my arms from using SLS free shampoo. Also my skin was just generally less spotty and bumpy. So I decided to continue to make my skin look better by switching to only SLS shower gels and bath products and face scrub/washes (but I will talk about that some other time). But using only SLS-free shower gels has made such a difference to the backs of my arms, I kid you not!
Much like shampoo you will find that most shower products that create a lather/foam will contain SLS. Radox, Philosophy, Aussie, some Lush products and even Original Source. Basically everything.
The above Possibility Raspberry Pavlova product was something I bought from ASOS over a year ago it's a multi-use product so shower gel and shampoo in one and of course it contains SLS. However it doesn't actually foam up that much! But anyway most SLS products do foam up.
I know this post won't be some people's cup of tea as it is more in-depth but it's something that I feel quite strongly about and really think it is worth a try even if it's just to achieve better hair and skin!