Best shampoo and conditioner for highlights

[AllertonRoad]

Hi. I have caramel highlights which I don’t have done very often. The ends seem to go yellow-y over time.
Can anyone recommend a shampoo range or product to stop this?
Thank you.

I have caramel and blonde highlights and on the advice of my hairdresser, use 'purple' shampoo. Works really well to get the reddish tinge out of lighter highlights. The longer you leave it on, the better it works. Google 'purple shampoo' for lots of info/brands. Don't bother with the conditioner, it's pretty shite.

I've been using this deciem.com/product/stm-gold-fulvic-conditioner-480ml for the last six weeks and it's been a revelation in keeping my highlights in really good condition. Previously, I'd alternated between using/not using conditioner but I've been using this every time and my hair looks and feels really good - so much so, I bought two extra bottles in case they discontinue. It feels totally different to other conditioners I've used, you really massage it in. It's got a distinctive scent (I quite like it) but it doesn't linger if you don't. It doesn't weigh my hair down and somehow my hair is quicker to dry after using this than my regular conditioners...I haven't been able to get the shampoo but use a colour preserve one from Joico.

Just to add, I use a violet shampoo once or twice a fortnight - my hairdresser said not to use it much more as it makes my more honey/ caramel highlights go ashy.

Lee Stafford purple shampoo once a week. Leave it on the hair for a couple of minutes (like you would with conditioner) before rinsing off.

Try to keep your hair washing water lukewarm (not hot).

Any conditioner.

Olaplex no 3 hair protector. Available from Amazon.