UpNature Organic Castor Oil Lash & Brow Serum (2 oz)
🔥 #67 in Lash & Brow Serums · New Conditioning oil, not a growth serum
UpNature Organic Castor Oil 16 oz – Multi-Use Conditioning Oil
UpNature 2.1
#67
in Lash & Brow Serums
$17.07 →
As of Jul 13, 2026
AI-estimated. See how we score. How we score Affiliate link — we may earn a commission
01 / Spec
Top features
Active TypeCastor oil base (no peptides or growth actives)
Key ActivesRicinoleic acid, omega fatty acids, vitamin E
ForFace, hair, skin (not targeted lash/brow growth)
UpNature Organic Castor Oil is a cold-pressed, USDA-certified castor oil packaged in a 16 oz glass bottle, positioned as a multi-use conditioning oil for face, hair, and skin. While castor oil is rich in ricinoleic acid, omega fatty acids, and vitamin E—ingredients with mild conditioning and anti-inflammatory properties—it is NOT a lash or brow growth serum. Unlike peptide serums (The Ordinary Multi-Peptide, GrandeLASH-MD) or prostaglandin analogs (RevitaLash), castor oil lacks clinical evidence for stimulating lash or brow growth. It may marginally improve lash and brow condition through hydration and nourishment, making it a budget-friendly maintenance supplement rather than an active growth treatment. Best suited for those seeking an all-purpose natural oil rather than a targeted lash-growth solution.
02 / Signals
Why it's hot
Affordable, multi-use oil; lacks peptides or growth actives
- Value for money 84
- Review rating & velocity 52
- Community sentiment 47
- Brand reputation 60
- Search heat 43
- Est. return & defect rate 89
03 / Verdict
Pros & cons
Pros
- Cold-pressed, organic, and USDA certified
- Multi-use for face, hair, and skin
- Affordable per ounce (~$1.07/oz at Prime price)
- No synthetic fragrance or harsh additives
- Hexane-free extraction
- Large 16 oz size reduces per-use cost
Cons
- No peptide complex or growth-stimulating actives
- No clinical evidence for lash/brow growth
- Lacks targeted applicator for precise eye-area use
- Messier application than dropper or brush serums
- Slower, gentler results than active growth serums
- May feel heavy on lashes if over-applied
Active TypeCastor oil base (no peptides or growth actives)
Key ActivesRicinoleic acid, omega fatty acids, vitamin E
ForFace, hair, skin (not targeted lash/brow growth)
Size16 fl oz
Price Per Month~$2–3 (depends on application frequency)
ApplicatorNone (bottle pour); user must apply with dropper or applicator brush
FragranceFragrance-free
Cruelty Free VeganVegan; cruelty-free status not explicitly stated
Prostaglandin FreeYes
05 / Your take
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05 / Compare
Compare the best alternative
One useful head-to-head in Lash & Brow Serums, with the rows most likely to separate the contenders.
Open full comparison → 
GrandeLASH-MD Lash Enhancing Serum 1mL
Regrowth Efficacy
Gradual softening; mild growth over 12+ weeks Fuller lashes in 6–8 weeks Most regrowth
Cost per Month
$3.84–$5 per fl oz; excellent monthly cost $36/month (~$1.20/day)
Peptide Potency
Castor oil + natural conditioning Multi-peptide + biotin, panthenol, castor oil
06 / Rivals
Compare with
07 / Variations
Other options
08 / Browse
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