Formulation
every shampoo has a secret it doesn't talk about on the front of the bottle. the base.
the base
is the surfactant system — the ingredients that actually do the cleaning. everything else in the formula (the oils, the proteins, the botanical extracts) is built on top of this foundation. if the base is harsh, no amount of argan oil or shea butter on top will fix the experience. the base determines how the shampoo feels on your scalp, how it rinses, what it leaves behind, and whether your hair feels stripped or comfortable afterward.
most shampoos — from drugstore to many so-called premium brands — start with the same ingredient: sodium lauryl sulfate, or SLS. it shows up under a few names (sodium laureth sulfate, SLES, ammonium lauryl sulfate), but the function is the same. SLS is cheap to manufacture, it produces a dramatic, bubbly lather, and it strips oil from your hair and scalp very effectively.
too effectively, actually.
SLS was originally developed as an industrial-grade degreaser. it was designed to cut through heavy grease on machinery and factory floors. somewhere along the way, the personal care industry adopted it as the default cleanser in shampoos, body washes, face washes, and even toothpaste. it works. but it also removes your scalp's natural sebum — the oil your skin produces to protect itself — along with the dirt. the result: that squeaky-clean feeling that most people associate with a good wash is actually the feeling of a stripped scalp.
your scalp responds to this stripping by overproducing oil. which is why many people who use sulfate-based shampoos find their hair gets oily faster — the scalp is trying to replace what was taken. so you wash more frequently. the cycle continues.
there is an alternative. it's called sodium cocoyl isethionate, or SCI. it's derived from coconut oil through a process called esterification. the result is a surfactant that produces a dense, creamy lather (not the big, airy bubbles of SLS) and cleans effectively without disrupting the scalp's natural oil balance.
SCI is what premium european personal care brands have been using for years. if you check the ingredient list on a malin+goetz shampoo, or many high-end salon brands, you'll find SCI or a close relative as the primary cleanser. the reason it isn't in most drugstore shampoos is simple: it costs 3-4x more than SLS. when you're manufacturing millions of units, that cost difference is significant. most brands choose the cheaper option.
we didn't.
both moosh shampoos — the argan shampoo and the clay shampoo — use sodium cocoyl isethionate as the primary surfactant. it's the first functional ingredient after water in both formulas. we pair it with cocamidopropyl hydroxysultaine and sodium methyl lauroyl taurate as secondary cleansers, which are also coconut-derived and gentle. the entire surfactant system is built around cleaning without stripping.
the difference is noticeable from the first wash. the lather is creamier and denser — it feels different in your hands and on your scalp. it rinses clean without leaving that tight, dry
sensation. and over the first week or two, as your scalp adjusts to not being stripped daily, you'll likely notice that your hair stays cleaner longer. the oil production cycle starts to normalise.
this is what we mean when we say the base matters. argan oil and shea butter and plant protein are important — they're what make the shampoo nourishing, conditioning, and strengthening. but they're built on top of a foundation. if that foundation is SLS, the nourishing ingredients are fighting against the damage the base is doing. if the foundation is SCI, everything works together.
next time you pick up any shampoo — ours or anyone else's — flip the bottle over. look at the first five ingredients. that's 80-90% of what's in the bottle. that's what you're actually paying for. the hero ingredients listed on the front, the ones in big type with leaf icons next to them, are usually in the bottom third of the ingredient list, present at less than 1%.
the base is the formula. everything else is decoration.
