Nicole Siff, better known online as “Bicep Princess,” is an American bodybuilder and fitness influencer famous for her natural, vegan approach to building serious muscle. She has built a following of nearly 300,000 on Instagram by sharing raw training footage, arm-day content, and her competitive bodybuilding journey.
Personal Information
| Category | Details |
|---|---|
| Full Name | Nicole Siff |
| Date of Birth | Not publicly confirmed (online sources conflict) |
| Age | Not publicly confirmed |
| Nationality | American |
| Profession | Bodybuilder, Fitness Influencer, Personal Trainer |
| Platforms | Instagram (@bicepprincess), TikTok, YouTube |
| Known For | The “Bicep Princess” nickname; natural, vegan bodybuilding physique and viral arm-training content |
| Net Worth | Estimated around $2 million (unofficial online estimate, not independently confirmed) |
| Spouse | Not publicly disclosed; reportedly single |
| Children | None publicly reported |
Body Measurements
| Measurement | Details |
|---|---|
| Height | 5 ft 7 in (170 cm) |
| Weight | Approx. 121 lbs (55 kg) |
| Body Measurements | Not publicly disclosed / verifiable |
| Body Type | Athletic, Muscular |
| Eye Color | Brown |
| Hair Color | Brown |
Bio & Career
- Built her online following by posting natural bodybuilding and arm-training content under the handle @bicepprincess, describing herself in her own Instagram bio as a “Vegan bodybuilder natural.”
- Competed in the NPC Klash Series Championships (March 2023), placing 1st in the Women’s Wellness division and 10th in the Bikini division.
- Known for her dedicated bicep and arm-day routines, which regularly go viral and earned her the “Bicep Princess” nickname.
- Has grown her Instagram following to roughly 283,000 followers as of publishing, with additional presence on TikTok and YouTube.
- Shares gym, food, Q&A, and vlog-style content, plus recent travel content from Colombia, via Instagram Story highlights.
Popularity
Latest News – Nicole Siff (2026)
- Continues to post fresh training content regularly, including a triceps-focused reel shared just hours before this article was published.
- Currently promoting a “Summer Body Reset” personalized training and nutrition coaching program for clients through her social platforms.
- Her Instagram following has climbed past 283,000, with new gym, food, Q&A, and vlog highlights added throughout 2026.
- Recently shared travel and lifestyle content from a trip to Colombia via her Instagram Story highlights.
FAQs
Who is Nicole Siff?
Nicole Siff, known online as “Bicep Princess,” is an American natural bodybuilder and fitness influencer recognized for her arm-training content and physique.
How old is Nicole Siff?
Her exact date of birth is not publicly confirmed, so her precise age cannot be independently verified.
How tall is Nicole Siff?
She stands at approximately 5 feet 7 inches (170 cm).
What is Nicole Siff’s net worth?
Her net worth is unofficially estimated at around $2 million, though this figure is not independently confirmed.
Is Nicole Siff married?
No confirmed spouse or partner has been publicly disclosed; she appears to be single.
Where can I follow Nicole Siff?
She is most active on Instagram at @bicepprincess, with additional content on TikTok and YouTube.
