L-cysteine Hydrochloride
L-cysteine Hydrochloride appears in 576 indexed US food products. No FDA SAFFA status or CSPI rating is attached in this snapshot, so this page reports prevalence rather than a safety verdict.
What the data can answer
L-cysteine Hydrochloride appears in 576 catalogued products, but this snapshot has no FDA SAFFA status or CSPI Chemical Cuisine rating attached to it. This page therefore cannot answer whether the ingredient is safe from those sources. It can show how often it occurs, where it tends to sit on labels, and which kinds of products contain it.
- 576
- catalogued products
- #965
- usage rank of 247,206
- 103
- named brands represented
- 79%
- average depth down ingredient lists
Catalog prevalence comes from Open Food Facts ingredient lists. FDA SAFFA and CSPI Chemical Cuisine labels are shown only when the source record contains them.
Reading this ingredient record
Audit the co-occurring flags first
65.6% of the linked products contain at least one separately flagged ingredient, making co-occurrence the dominant follow-up question. That figure does not identify L-cysteine Hydrochloride as the trigger. Open records such as 1/2 Cheese Pizza & 1/2 Pepperoni Pizza; 12 Hotdog Rolls; 5 Cheese Bread and inspect which ingredient row carries the caution marker. The 82.9/100 product average is therefore a triage signal for this surrounding formulation set, not an ingredient verdict. Its 79% average label depth helps locate the term when checking the package.
65.6% of linked products contain a separately flagged ingredient
Processing is unusually concentrated here: Group 4 accounts for 562 of 574 NOVA-tagged records. That describes the surrounding products, not the substance. For a useful comparison, hold category and processing level constant, then inspect which named component changes alongside the caution flag; otherwise the product mix will confound the ingredient question.
Next check: open the lowest-scoring linked formulation and locate the exact caution-marked component.
High-volume listing for L-cysteine Hydrochloride - usage rank #965
- Usage rank
- #965
- of 247,206 ingredients that appear in at least one catalogued product, tied with 2 others that also appear in exactly 576 products, listed in more products than 99.6% of them.
- Typical depth in an ingredient list
- 79%
- Averaged label depth puts L-cysteine Hydrochloride near the end of the captured list (79% of list length, mean slot 43.4). Compound ingredients and OCR noise mean this cannot stand in for quantity.
Ranks use Open Food Facts ingredient rows on this site’s refresh cycle. 247,206 ingredients with ≥1 product appearance enter the ranking. Prevalence and list depth are catalog facts, not toxicology.
What else is usually in the same product as L-cysteine Hydrochloride
Across the 576 products on this site that list L-cysteine Hydrochloride, these flagged additives appear alongside it most often. The comparison column is how often each one appears across every product with a parsed ingredient list, so the two figures are measured over the same set. Sodium Nitrite shows up about 13.3x more often with L-cysteine Hydrochloride than in the catalogue at large.
| Additive | Shared products | Share of L-cysteine Hydrochloride products | Share of all products |
|---|---|---|---|
| Sodium Nitrite | 184 | 31.9% | 2.4% |
| BHT | 130 | 22.6% | 1.1% |
| BHA | 122 | 21.2% | 0.7% |
| Caramel Coloring | 103 | 17.9% | 5.7% |
| Carrageenan | 47 | 8.2% | 4.5% |
Co-occurrence describes what manufacturers formulate together. It is not a claim that these additives interact, and it carries no regulatory meaning. Counted over products with parsed ingredient lists; Open Food Facts, 2026-09-01.
How do the sampled products compare?
Each point is one of the 16 sampled products listed below: its overall safety score against how many separately flagged ingredients its label carries. Bubble size is the number of ingredient rows the label actually resolved to.
Safety score vs. flagged-ingredient count for products containing L-cysteine Hydrochloride
Products Containing L-cysteine Hydrochloride
High-volume slice (16 of 576) for products naming L-cysteine Hydrochloride:
L-cysteine Hydrochloride vs other top-decile catalog footprints
L-cysteine Hydrochloride sits among other busy catalog rows (576 products, mean score 82.9/100). Nearest count peers include “Organic Cultured Pasteurized Nonfat Milk”, “Textured Soy Flour”, “Sal”. Count peers and score peers are listed separately on purpose.
Similar product count
Nearest other ingredients by Open Food Facts product count (floored at ≥50).
Similar mean product score
Mean product-score neighbours (≥50 scored products), kept separate from the product-count peers above.
Next steps from the L-cysteine Hydrochloride page
576 product rows plus any FDA/CSPI fields on L-cysteine Hydrochloride are the evidence base — drill into the listings that matter for your decision.
- Review the sampled product records that list L-cysteine Hydrochloride to see how the ingredient appears in actual labels. See listed products
- Place L-cysteine Hydrochloride next to “Textured Soy Flour” (or another peer) using the same FDA/CSPI and prevalence fields. Browse ingredient records
- Read how PlainFoodSafe joins source records before treating a screening label as a personal food or health conclusion. Read the methodology
This page describes published source classifications and product-label coverage. It is not dietary, allergy, or medical advice.
Questions readers ask about L-cysteine Hydrochloride
How should I read safety signals when L-cysteine Hydrochloride sits in heavily flagged products? ▼
65.6% of linked products contain at least one separately flagged ingredient, so the first task is locating which row carries the caution marker — not assuming L-cysteine Hydrochloride is the trigger. None of that replaces a product-, dose-, allergy-, or person-specific determination.
Which product shelves show up most often with L-cysteine Hydrochloride? ▼
L-cysteine Hydrochloride ranks in the top decile by product count (#965 of 247,206), appearing in 576 indexed products led by Frozen foods. The sample list below is a slice of that footprint, not the full universe.
Why is L-cysteine Hydrochloride so common on ingredient lists? ▼
The source record does not name a technical effect, yet L-cysteine Hydrochloride appears in 576 products (#965 usage rank). High prevalence here describes formulation frequency, not an approved use level.
Regulatory status: FDA SAFFA (L-cysteine Hydrochloride). Safety ratings: CSPI Chemical Cuisine; product presence: Open Food Facts via PlainFoodSafe (September 2026). Figures are computed from those sources, no editor-typed counts. Methodology · State regulations.