One of the real challenges with health and nutrition is figuring out what labels really mean.  I'll  use a very simple example: let's take a simple gentle face wash, say La Roche-Posay's Gentle Foaming Moisturizing Wash.  Should be super simple, because its a common, supposedly gentler alternative to using conventional soap. 

Let's start with the company; its really a brand, not a company, as its now owned by L'oreal, the biggest cosmetics company in the world, with 36 different brands. Given how huge the company is, the name "La Roche-Posay" doesn't provide any real useful info to consumers; its simply fills a space that L'oreal deems appropriate among its vast array of brands. 

Not hard to find a list of ingredients: 
 AQUA / WATER / EAU (LA ROCHE-POSAY PREBIOTIC THERMAL WATER) • GLYCERIN • PENTAERYTHRITYL TETRAETHYLHEXANOATE • PROPYLENE GLYCOL• AMMONIUM POLYACRYLOYLDIMETHYL TAURATE • POLYSORBATE 60 • CERAMIDE NP • NIACINAMIDE • SODIUM CHLORIDE • COCO-BETAINE • DISODIUM EDTA • CAPRYLYL GLYCOL • PANTHENOL • T-BUTYL ALCOHOL • TOCOPHEROL

But very difficult to figure out what any of those actually means.  Google gives a useful AI overview of pentaerythrityl tetraethylhexanoate:
Pentaerythrityl tetraethylhexanoate is a colorless, oil-soluble liquid that is used in many cosmetics and skin care products. It is also known by the trade names DUB PTO, SALACOS 5408, and SOLDOC VF 4/8. 

Pentaerythrityl tetraethylhexanoate has many benefits, including:

Hydration: Helps the skin trap moisture, which can make it appear smooth and plump

Texture: Thickens and improves the texture of a formula, giving it a silky, non-greasy feel

Protection: Creates a protective barrier that seals in moisture, making it a good choice for dry or dehydrated skin

Application: Improves the spreadability and absorption of cosmetic products, which can lead to a smoother application and a velvety finish 

Pentaerythrityl tetraethylhexanoate is used in cosmetics and skin care products in amounts ranging from 0.06% to 50%. The Cosmetic Ingredient Review Expert Panel has deemed it safe for use in these products. 

But that's for just one listed ingredient.  One would have to search each of the 14 different chemicals listed to understand the product. The bigger challenge is that what really matters is not chemical composition in isolation, but the way in which this particular set of 14 compounds interacts. And that interaction is going to be further complicated by the uniqueness, including unique skin composition of each individual (There's a reason why fingerprints are different for every person)

So answering a seemingly simple questions like "Is this face wash safe" or "effective" is actually incredibly complex.  But we'll attempt to do that sort of thing on the new health studies section of global fast fit.