NuBodyRx is an authorized Nu Skin retailer. This article is for educational purposes and does not constitute medical advice. Individual results vary. Consult your physician before starting any new supplement regimen.
One of the most common questions from women exploring the Estera system is: what is the difference between Phase II and Phase III, and which one is right for me? Both formulas are designed for women in midlife navigating hormonal changes โ but they target fundamentally different hormonal environments and prioritize different outcomes.
Choosing the wrong phase doesn't mean the supplement won't work at all โ but it does mean you're not getting the formula optimized for your specific hormonal situation. This guide explains the key differences and gives you a clear framework for choosing.
The Core Distinction: Hormonal Volatility vs. Hormonal Deficiency
The most important distinction between Phase II and Phase III is the hormonal environment each is designed for:
- Estera Phase II is designed for hormonal volatility โ the erratic estrogen fluctuations of perimenopause, where levels swing unpredictably between high and low. The primary challenge is instability, not simply deficiency.
- Estera Phase III is designed for sustained hormonal deficiency โ the stable but chronically low estrogen environment of post-menopause, where the primary challenge is the long-term consequences of estrogen absence rather than its fluctuation.
Estera Phase II โ Women's Transitions Formula
Who it's for: Women in perimenopause โ typically ages 40โ52 โ who are still menstruating (even if irregularly) and experiencing perimenopausal symptoms: hot flashes, night sweats, sleep disruption, mood changes, irregular periods, or accelerating skin changes.
Key Ingredients
- Soy isoflavones (genistein, daidzein) โ ER-ฮฒ binding for adaptogenic estrogenic buffering during fluctuations
- Red clover isoflavones (formononetin, biochanin A) โ converted to equol in the gut for stronger ER-ฮฒ affinity; strong hot flash evidence
- Black cohosh โ serotonin/dopamine receptor modulation for hot flash, night sweat, and mood relief
- DIM (Diindolylmethane) โ promotes 2-hydroxyestrone over 16-hydroxyestrone for healthy estrogen metabolism
- Flaxseed lignans โ adaptogenic phytoestrogens moderating both estrogen excess and deficiency
- Chasteberry (Vitex) โ dopamine receptor modulation to support progesterone production
Primary Outcomes
- Reduced hot flash frequency and severity
- Improved sleep quality (reduced night sweats)
- Mood stabilization during hormonal fluctuations
- Cycle regularity support during the perimenopausal transition
- Partial mitigation of accelerating skin collagen loss
Shop: Estera Phase II โ Women's Transitions Formula ($94.00)
Estera Phase III โ Women's Maintenance Formula
Who it's for: Post-menopausal women โ 12+ consecutive months without a menstrual period โ focused on long-term health in the sustained low-estrogen environment.
Key Ingredients
- Soy isoflavones โ ongoing ER-ฮฒ support for bone density maintenance in osteoblasts and osteoclasts
- Calcium (as calcium citrate) โ most bioavailable calcium form; 1,200mg/day post-menopausal requirement
- Vitamin D3 โ essential for intestinal calcium absorption and bone mineralization
- Vitamin K2 (MK-7) โ activates osteocalcin (calcium into bone) and matrix Gla protein (prevents arterial calcification)
- Flaxseed lignans โ cardiovascular support: lipid profile and arterial flexibility
- Folate (as methylfolate) โ homocysteine metabolism for cardiovascular protection
Note: Black cohosh and chasteberry are not in Phase III โ acute symptom management is no longer the primary need post-menopause.
Primary Outcomes
- Bone mineral density preservation
- Cardiovascular risk support (lipid profile, homocysteine, arterial flexibility)
- Ongoing skin collagen and hydration support via ER-ฮฒ activation
- Calcium directed to bone rather than arterial walls (K2)
Shop: Estera Phase III โ Women's Maintenance Formula ($94.00)
Side-by-Side Comparison
| Factor | Estera Phase II | Estera Phase III |
|---|---|---|
| Target stage | Perimenopause (still menstruating) | Post-menopause (12+ months without period) |
| Hormonal environment | Volatile, fluctuating estrogen | Stable, chronically low estrogen |
| Primary concern | Acute symptom management + skin | Long-term bone, cardiovascular, skin |
| Soy isoflavones | Yes | Yes |
| Red clover isoflavones | Yes | No |
| Black cohosh | Yes | No |
| DIM | Yes | No |
| Chasteberry | Yes | No |
| Calcium + D3 + K2 | No | Yes |
| Methylfolate | Yes | Yes |
How to Know Which Phase You're In
- Still menstruating (even irregularly): Phase II
- 12+ consecutive months without a period: Phase III
- Unsure: FSH above 30 mIU/mL with low estradiol is consistent with post-menopause โ confirm with your physician
- Gray zone (6โ11 months without a period): Stay on Phase II until 12 consecutive months are confirmed
Can You Take Both Phase II and Phase III?
No โ they are sequential formulas, not concurrent ones. Use Phase II throughout perimenopause, then transition to Phase III after confirmed menopause.
Pairing Either Phase with the Complete Protocol
- LifePak Nano โ comprehensive nutritional foundation
- Beauty Focus Collagen+ โ direct fibroblast collagen stimulation
- ageLOC Youth โ cellular energy and renewal YGC support
- ageLOC RenuSpa iO โ microcurrent collagen and muscle tone support
Frequently Asked Questions
What is the main difference between Estera Phase II and Phase III?
Phase II targets the hormonal volatility of perimenopause with black cohosh, red clover, DIM, and chasteberry for acute symptom management. Phase III targets the sustained low-estrogen environment of post-menopause, prioritizing bone density (calcium, D3, K2), cardiovascular health (lignans, methylfolate), and ongoing skin support (soy isoflavones).
How do I know if I should be on Phase II or Phase III?
If you are still menstruating โ even irregularly โ Phase II is appropriate. If you have gone 12 consecutive months without a menstrual period, Phase III is appropriate. FSH and estradiol blood tests can confirm your hormonal status if you are unsure.
Can I start Phase III before I've completed 12 months without a period?
It's best to wait for confirmed menopause. During perimenopause, the adaptogenic phytoestrogens and symptom-management ingredients in Phase II are more appropriate. Transitioning too early means losing acute symptom support before it's no longer needed.
Does Phase III help with hot flashes?
Phase III's soy isoflavones may help with residual hot flashes, but it does not include black cohosh or red clover โ the ingredients with the strongest clinical evidence for acute hot flash relief. If hot flashes remain significant after menopause, discuss options with your physician.
Where can I buy Estera Phase II and Phase III?
NuBodyRx.com is an authorized Pharmanex retailer offering both Estera phases with guaranteed authenticity, fast US shipping, and no membership required.