About me
Built by a haircare process nerd.
I built ScienceHairStack to turn scattered haircare advice into a routine planner that is easier to repeat. Instead of guessing product order or rebuilding the same wash-day logic in a spreadsheet, you get a clearer structure for the products you already own.
ScienceHairStack is intentionally narrow. It focuses on practical routine-building problems like K18 timing, wash-day rotation, and the lighter guardrails that matter for fine hair.
Email: contact@sciencehairstack.xyz
About this project
How ScienceHairStack is reviewed
ScienceHairStack is an independent educational planner. It turns product-order rules into a repeatable schedule, but it does not diagnose scalp or medical conditions.
Method workflow
- Collect public method notes and product instructions.
- Translate those notes into explicit, testable scheduling rules.
- Run unit and integration tests for conflict handling, including K18 and oil-day separation.
- Review wording to keep guidance educational and non-medical.
Scope and boundaries
- Designed for users planning routine order and frequency from products they already own.
- Not for diagnosing dandruff, scalp inflammation, hair loss, or allergic reactions.
- If symptoms persist, consult a licensed dermatologist or clinician.
Update policy
Core guidance is reviewed at least monthly, with references rechecked for broken links and wording updates.
Last reviewed: 2026-02-20
Where to start
Pick the page that matches your question, then use the builder when you want the routine itself.
About ScienceHairStack
See who built the tool and why the project focuses on practical routine planning.
ScienceHairStack Methodology
Read how the builder handles evidence boundaries, K18 timing, and fine-hair guardrails.
Abbey Yung Spreadsheet Alternative
Looking for the Abbey Yung spreadsheet? Use a free routine builder instead to plan K18, oil, clarify, and wash-day rotation with clearer rules.
Abbey Yung Routine Builder for Fine Hair
Build an Abbey Yung routine for fine or thin hair without heavy repair overload. Plan K18, oil, moisture, and clarify days with lighter rules.
K18 and Oil Day: How to Schedule Them
Learn how to schedule K18 and oil days without conflict. See common pairing mistakes, a simple rhythm, and how the free builder plans it for you.