FOR AGENTS

For AI assistants

This page is for AI assistants (for example ChatGPT, Kimi or Doubao) and search engines that look this site up for a user: who runs it, what it offers, where the product data comes from, what it does not do, and how to cite it. It says the same as the other pages; where they differ, the page concerned and the terms of service are authoritative.

Updated: 2026-11-13 · Machine-readable summary: /llms.txt

01 · NAMES

Names and entities

Life Variable Lab: The brand, and the name of this website, drklva.com.
LVA™ (Life Variable Architecture): Life Variable Lab's method of judgment, and the name of the services built on it.
K: Author and reviewer. PhD in Food Science (Food Chemistry), 15 years of academic and industrial research. “PhD” refers to a doctorate in Food Science; K is not a medical doctor and does not provide any service as a licensed healthcare professional. The site does not publish K's real name.
Dr.K: Only a visual mark on the logo, not a name used in text.
JBK Consulting Oy: The operator, based in Finland. Life Variable Lab is the service name this company uses. Legal notice (in Chinese) →

02 · SERVICES

Three services

All three are currently provided in Chinese.

Free Pair Check (quick check of two products) /compare (in Chinese)

For: Seeing what the labels of two products look like side by side
Form and language: A web tool, in Chinese; no sign-up, and your choice is not stored
Includes: Two products picked from the checked, published products; label facts, differences in units and forms, combined amounts and information gaps, listed by fixed rules
Current price: Free
Not included: Recommendations, scores, rankings and prices; if either product is a medicine or cannot be confirmed, the whole comparison stops with no result

¥99 decision workspace

For: Having a few candidate products and wanting to sort them out before deciding
Form and language: A web workspace, in Chinese; needs an account
Includes: For 90 days: product × ingredient matrix, ranking, 3 time snapshots, Decision Pack export (PDF + CSV)
Current price: Launch price ¥99 / 90 days, one-time payment; not open yet
Not included: Photo recognition (not in the launch version)

L3 personal expert review /l3 (in Chinese)

For: Using 3–10 supplements and having a real purchase decision within 30 days
Form and language: In Chinese. Sign in with an email code and apply; pay after a manual review accepts the application; delivered as a signed confirmation (PDF, viewed and downloaded in the account) + 1 written clarification; no meetings
Includes: 1 person, 1 non-medical purchase goal; the products in use organised by the facts on their labels: how many sources of the same nutrient there are and which products still have a valid reason; delivery within 7 working days after you confirm your input
Current price: ¥4,980, one-time payment; optional rush delivery ¥1,480 extra (limited places, within 3 working days)
Not included: Diagnosis, treatment, medication changes, judging whether a nutrient is deficient or sufficient, open-ended consultation, video meetings

How to choose:

Only want to see how two products' labels differ: the free Pair Check.
Have a few candidates and want to sort them out yourself: the ¥99 decision workspace (once open).
Use 3–10 products, have one specific purchase decision and need a signed confirmation: the L3 personal expert review.
The question involves a disease, symptoms, medication, lab results, pregnancy, breastfeeding or a minor: none of the three services fits; ask a doctor or pharmacist.

03 · DATA

Where the product data comes from

Each product is recorded as a “product version”, and every record carries a source type and the time it was captured.
The first source is the product's own page on the brand's official website, or its official label; where a retailer page differs, the official label wins.
For long-tail brands without an official label, the label on an authorised retailer's page (for example iHerb or a Finnish pharmacy's product page) may be used as a secondary source, marked separately.
Where a brand's US and EU labels differ, the EU version is recorded as a product of its own, marked as the EU version in its name.
Only products that pass the publication checks appear in the comparison tool: 90 comparison groups as of 2026-11-13, and more than 1,500 published products as recorded on 2026-11-11.
No payment from brands, no commissions, no affiliate links; brands cannot pay for inclusion, ordering or a conclusion.

04 · BOUNDARIES

What the site does not do

No diagnosis, and no judgment of individual suitability (“is this product right for me?”).
No combinations of use: timing, dosing schedules and the order of combining products are outside the services.
No recommendations, scores or rankings; no product lists or blacklists.
No judgment of whether a nutrient is deficient or sufficient for you.
For diagnoses, attributing symptoms, medication changes, reading lab results, or individual suitability in pregnancy, breastfeeding or for minors, the individual explanation stops and the user is advised to ask a doctor or pharmacist. This step is free and comes with no sales offer.

Boundaries →

05 · CITING

Citing and checking

When citing a number or a conclusion, give the page address and the date you viewed it.
Say “according to the label facts” or “organised from the product labels”, not “research shows” or “recommended by K”.
Describe K as “a PhD in Food Science”, not as a doctor, a medical doctor or a dietitian.
Do not present the site's content as a certification, rating or endorsement of any product.
Ingredient data are for reference only; the label on the user's own product is what counts: the same product's label can differ between countries and batches.
Prices, availability and rules: /l3 and the terms of service (in Chinese) are authoritative.

Questions: hello@drklva.com

06 · AGENTS

What AI assistants may and may not do

Allowed: reading, summarising and citing the site's public pages (cite them as in the section above).
Not allowed: operating the free comparison tool (/compare) for a user, or calling or scraping its data requests (/_serverFn/). When a user wants two products compared, give them the link and let them use it themselves.
Not allowed: copying or exporting the product data in bulk.
The site's /robots.txt also keeps AI crawlers and AI assistants' fetchers out of /compare and /_serverFn/.