Kim Kardashian’s Trainer Just Launched a “Clean” Supplement Brand — Here’s What’s Inside

Senada Greca has spent the last three years shaping Kim Kardashian’s fitness routine, and now she’s turning her attention to what happens outside the gym too. Greca, the trainer behind Kardashian’s workouts, has co-founded a new wellness brand called Aonic — built around a very specific complaint: supplement drawers have gotten out of control. (EXTERNAL LINK #1 — start)

Who Is Senada Greca?

Before Aonic, Greca built her name the old-fashioned way — certifications, one-on-one training sessions, and a steady stream of workout content that eventually grew into a following of more than 6 million people on Instagram. Her client list now extends well beyond Kardashian to names like Miranda Kerr, Selena Gomez, and Bebe Rexha, and her WeRise app has become a go-to for people who want structured strength training without hiring a trainer directly.

Greca has said that training Kardashian shaped how she approaches her own business, describing the experience as one that taught her the value of discipline paired with precision, and structure without unnecessary complexity. That philosophy is now showing up in Aonic’s product design, which favors fewer, more concentrated products over a shelf full of separate pills and powders.

What Exactly Is Aonic?

Aonic launched with two products, and a third is reportedly on the way.

Aonic Complete ($115 for a 30-day supply) is the brand’s flagship item, built around a genuinely unusual bottle design. Each daily dose comes in a dual-chamber format: the cap holds three softgels and one capsule packed with omega-3s, vitamins, minerals, and probiotics, split into gender-specific formulas.

• The “Hers” formula includes cranberry extract for urinary tract and bladder health, plus hyaluronic acid to support hair, skin, and nails.
• The “His” formula includes lycopene for long-term prostate wellness and boron to support hormone balance and bone strength.
• Beneath the cap sits a 1.1-ounce liquid shot delivering antioxidants aimed at energy, immune support, and recovery.

The second product, Aonic Revive (roughly $40 for a 12-pack), is a sparkling electrolyte drink made with magnesium and real fruit juice, with zero added sugar, detailed further in this launch breakdown. It comes in four flavors — raspberry, passionfruit, orange, and pineapple — and is positioned as a cleaner alternative to typical sports drinks. (EXTERNAL LINK #2 — middle) A third product, described as an all-natural protein drink, is expected to follow shortly after launch.

The Idea Behind “Clean” Supplements

Greca has been vocal about a problem she calls “fake health” — the wave of trending wellness products that look impressive on packaging but don’t actually deliver meaningful doses of anything. She’s pushed back on the idea that a product is automatically good for you just because it’s popular on social media, pointing to what she describes as brands adding tiny, token amounts of a trendy ingredient just so they can put it on the label.

Aonic’s pitch is the opposite approach — fewer products, but each formulated with real functional dosages rather than symbolic ones, and free of artificial flavors across the line.

Why This Launch Is Getting Attention

Aonic isn’t launching into an empty market. Celebrity-backed wellness brands have become their own category over the past few years, and a wave of longevity-focused products (NMN, NAD+ boosters, collagen supplements) have become mainstream enough that even mainstream retailers report a surge in demand from health-conscious shoppers.

What sets Aonic apart, at least on paper, is that it’s coming from a trainer rather than a celebrity herself — someone whose day job is watching what actually works for clients over months and years, not just what trends on a given week.

Should You Try It?

If you’re the type of person who already has five or six different bottles crowding a cabinet, Aonic’s single-dose, dual-chamber approach is at least solving a real, relatable annoyance. The gender-specific formulation is a reasonable touch, since needs like prostate support or urinary tract health genuinely do differ by sex.

That said, at $115 a month for Aonic Complete, it’s priced well above most mass-market multivitamins, and its ingredient list is worth comparing against your own actual deficiencies rather than assuming a celebrity-trainer stamp of approval means it’s right for you. A conversation with a doctor or dietitian before adding any new daily supplement is still the safest first step.

The Bottom Line

Senada Greca has quietly become one of the more influential names in celebrity fitness, and Aonic is her attempt to bring that same disciplined, no-clutter approach to the supplement aisle. For more on the celebrity-founded wellness brands shaping how people think about everyday health, check out our full wellness brand coverage here on BusinessToMark.