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Hiya Sync

Hormones shift across your cycle — and a single test day often misses the full picture. Hiya Sync measures your hormones at two key points: Day 3 (your baseline) and your luteal phase (typically around Day 21 in a regular cycle). This allows you to see whether you’re ovulating, how well your cycle is regulated, and whether your hormone levels rise and fall in sync. It’s especially useful if you experience irregular cycles, short luteal phases, spotting before/after your period, or aren’t sure if you’re ovulating — even when standard tests say everything looks “normal.” Your results include a doctor-reviewed interpretation and clear guidance on what’s in range, what’s not, and what it could mean for your hormonal health.

  • Analysed byISO-accredited lab

  • Tracked 24–48 hourdelivery

  • Personalisedclinician advice

  • Professional sample collectionFlexible sampling options

When to get test: During your baseline (around Day 3) and luteal phase (typically around Day 21) — Hiya helps you identify the right days based on your cycle pattern.

What's Measured

FSH, LH, Estradiol, and Progesterone — tested during your baseline and luteal phase

💧4 Biomarkers

FSH is a pituitary hormone essential for reproductive health. In women, it stimulates the growth and maturation of ovarian follicles, leading to egg development and estrogen production. In men, it regulates spermatogenesis by acting on Sertoli cells in the testes. Abnormal levels can indicate infertility, polycystic ovary syndrome (PCOS), or pituitary dysfunction.

LH is another pituitary hormone that works closely with FSH to regulate the reproductive system. In women, a surge in LH triggers ovulation and the formation of the corpus luteum, which produces progesterone. In men, LH stimulates Leydig cells to produce testosterone. Imbalances may signal infertility, delayed puberty, or hormonal disorders.

Estradiol is the most potent form of estrogen, primarily produced by the ovaries. It regulates the menstrual cycle, stimulates endometrial growth, and influences secondary sexual characteristics. Estradiol also plays vital roles in bone density, cardiovascular health, and mood regulation. Abnormal levels can be linked to infertility, menopause symptoms, or endocrine disorders.

Progesterone is a steroid hormone secreted mainly by the corpus luteum after ovulation and by the placenta during pregnancy. It prepares the endometrium for embryo implantation, maintains pregnancy, and balances the effects of estrogen. Low levels can cause menstrual irregularities, miscarriages, or infertility, while high levels may be linked to ovarian or adrenal issues.

What's Measured

FSH, LH, Estradiol, and Progesterone — tested during your baseline and luteal phase

💧4 Biomarkers

FSH is a pituitary hormone essential for reproductive health. In women, it stimulates the growth and maturation of ovarian follicles, leading to egg development and estrogen production. In men, it regulates spermatogenesis by acting on Sertoli cells in the testes. Abnormal levels can indicate infertility, polycystic ovary syndrome (PCOS), or pituitary dysfunction.

LH is another pituitary hormone that works closely with FSH to regulate the reproductive system. In women, a surge in LH triggers ovulation and the formation of the corpus luteum, which produces progesterone. In men, LH stimulates Leydig cells to produce testosterone. Imbalances may signal infertility, delayed puberty, or hormonal disorders.

Estradiol is the most potent form of estrogen, primarily produced by the ovaries. It regulates the menstrual cycle, stimulates endometrial growth, and influences secondary sexual characteristics. Estradiol also plays vital roles in bone density, cardiovascular health, and mood regulation. Abnormal levels can be linked to infertility, menopause symptoms, or endocrine disorders.

Progesterone is a steroid hormone secreted mainly by the corpus luteum after ovulation and by the placenta during pregnancy. It prepares the endometrium for embryo implantation, maintains pregnancy, and balances the effects of estrogen. Low levels can cause menstrual irregularities, miscarriages, or infertility, while high levels may be linked to ovarian or adrenal issues.

Why Take This Test

To assess ovulation and overall cycle balance.

Who It's For

• Women with PMS, spotting, or short luteal phases

• Women who aren’t sure if they’re ovulating

• Women tracking cycles for fertility or hormonal regulation

Your Aftercare Journey

What happens after your test

Sample Collection & Processing
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Sample Collection & Processing

Your journey begins with a simple, convenient sample collection process. Whether you choose to visit one of our partner clinics or have a licensed nurse come to your home, we ensure the highest standards of safety and comfort. Your sample is then carefully transported to our accredited laboratory where it undergoes rigorous processing and analysis using state-of-the-art equipment and validated methodologies.

What You Get

  • Professional sample collection by licensed healthcare providers
  • Secure transportation to accredited laboratory facilities
  • Rigorous quality control and sample processing protocols
  • Advanced biomarker analysis using validated methodologies

Why It Matters

Proper sample collection and processing are critical to ensuring accurate results. Our accredited partners follow strict protocols to maintain sample integrity from collection to analysis.

Laboratory Analysis & Results Processing
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Laboratory Analysis & Results Processing

Your sample undergoes comprehensive analysis in our ISO 15189-accredited laboratory using CE-marked assays and validated instrumentation. Every biomarker is measured against established medical reference ranges to ensure precision and clinical relevance. Once analysis is complete, your raw results are processed through our clinical interpretation framework to transform data into meaningful health insights.

What You Get

  • ISO 15189-accredited laboratory analysis
  • CE-marked assays and validated instrumentation
  • Biomarker measurement against medical reference ranges
  • Clinical interpretation framework for meaningful insights

Why It Matters

All analyses are performed under strict laboratory standards using medically approved methodologies. Our accredited laboratory partners operate under international quality standards to deliver results of exceptional precision and clinical reliability.

Personalized Results & Next Steps
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Personalized Results & Next Steps

Your results are interpreted by qualified doctors using our clinical framework to provide clear, actionable insights. You'll receive a comprehensive report that explains what your numbers mean for your health and wellbeing, along with personalized recommendations for next steps. Our team is available to answer questions and provide guidance on implementing any recommended lifestyle changes or medical follow-ups.

What You Get

  • Comprehensive, easy-to-understand results report
  • Personalized health insights and recommendations
  • Access to healthcare provider consultations if needed
  • Ongoing support and follow-up guidance

Why It Matters

Understanding your results is just the beginning. Our team provides personalized guidance to help you take actionable steps toward better health, with ongoing support throughout your journey.

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Science & Validation

1 answer
Your sample is analysed using Swiss Roche diagnostic assays, trusted globally for their accuracy and consistency

Cycle Timing and day of testing

6 answers
Day-3 testing happens between Day 2–5 of your period, when baseline hormones are most stable.
Hormones rise and fall throughout your cycle. Proper timing ensures accurate interpretation.
Many women don’t — and that’s okay. Hiya estimates your luteal window using your typical cycle length, recent period patterns, or symptoms, and adjusts timing if needed.
Taken around seven days before your expected period, reflecting mid-luteal progesterone.
Very normal. Day-3 stays the same; luteal timing shifts with your cycle length, always 7 days before your next period.
Yes. Irregular cycles are common. Hiya identifies the closest early-cycle and luteal windows so your results still reflect meaningful patterns.

Can i test if…

2 answers
Yes. Testing can help you understand your current hormone patterns. While Hiya cannot diagnose or monitor medical conditions, our clinicians review your results with your history in mind and guide you on when further medical evaluation may be helpful.
Yes. Hormone testing can help you understand whether your cycle and ovulation patterns are aligning as expected. It’s a supportive first step, but it does not replace fertility evaluation if you’ve been trying for some time. Our clinicians guide you gently on what to do next.

Sampling

3 answers
No. Sampling is designed to feel simple, comfortable, and supported. You can visit one of our partner clinics or have a licensed nurse collect your sample at home — whichever feels right for you.
Typically 3–5 business days after your sample reaches the lab.
A trained professional collects a small blood sample using standard clinical techniques. The process takes only a few minutes and is designed to feel calm and safe.

Preparation

1 answer
No special preparation is needed. You can continue your normal routine, stay hydrated, and follow any instructions provided. When the self-sampling kit becomes available, it will include clear guidance to ensure you collect your sample safely and correctly at home.

Results

1 answer
Your report walks you through each hormone in simple, clear language, explains what your levels may mean for your cycle and symptoms, and offers supportive guidance on next steps — including when a medical follow-up may be helpful.
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