—Limited data

18/22 ingredients recognized

Ingredient safety61

Formulation quality53

Contaminant risk100

Label transparency28

How we scored this

PureScore is the stored composite of ingredient safety (40%), formulation quality (30%), contaminant risk (20%) and label transparency (10%). This label matched 18 of 22 listed ingredients. Unmatched names never wear an Excellent stamp. Methodology

Doubleshot energy coffee beverage

Beverages Coffee & Tea0492716507124

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Flagged concerns

maltodextrin

Ultra-processed starch derivative; very high glycemic index; may disrupt gut bacteria.

dextrose

Isolated glucose from corn or wheat starch; high glycemic; rapid insulin spike

natural flavor

Vague term masking hundreds of possible compounds; may include MSG, beaver anal gland secretions, and other sources.

cellulose gum

Synthetic emulsifier; animal studies link it to microbiome disruption and inflammation.

vitamin a palmitate

May enhance tumor development when applied on skin exposed to UV; avoid in daytime SPF products.

sucralose

May alter gut microbiome; studies show possible DNA damage at high doses.

sugar

High glycemic index; promotes inflammation and metabolic disease.

Full ingredient list

Starbucks coffee (water, coffee), reduced-fat milk, skim milk, sugar, maltodextrin, dextrose, taurine, natural flavor, cellulose gel, panax ginseng root extract, inositol, sodium ascorbate, guarana (paullinia cupana) seed extract, cellulose gum, niacinamide, ascorbic acid (vitamin c), sucralose, tricalcium phosphate, pyridoxine hydrochloride (vitamin b6), riboflavin, vitamin a palmitate, vitamin d3.