Total Curve Review (2026): The Volufiline Pill and Gel System

Introduction: The Essentials

Marketing describes Total Curve as a "daily breast enhancement therapy". One half is a herbal supplement (fennel, dong quai, black cohosh, hops, wild yam and others) and the other is a lifting and firming gel. Volufiline sits in the gel alone. According to the sales page, 32 women applied Volufiline to one breast for 56 days in a study. The page leaves out who conducted it, how tissue was measured and whether a control group was used, and we found no peer-reviewed publication. No ingredient amounts are listed. We compare Total Curve here with the other women's products we've reviewed, most of which have different goals.

For every product, we look at the current formula and disclosed doses, whether the product itself has gone through a published trial, what the ingredient research shows, the guarantee terms and the main safety cautions. As disclosed above, we earn affiliate commissions when you buy through our links.

Total Curve in Brief

This breast-enhancement system from Leading Edge Health combines a phytoestrogen herb supplement, taken daily, with a topical gel that includes the cosmetic ingredient Volufiline. Nobody has published a trial of the product, and the amounts are undisclosed. It fits women who are curious about a non-surgical option, accept thin evidence and plan to use the refund policy if needed. Its 'up to 8.4%' claim comes from an unpublished study of the gel ingredient rather than Total Curve, and some of the pill's herbs act on hormones, which makes it a poor fit for some women.

How to Judge Products in This Category

Before you compare individual products, run through these checks first:

• Doses versus the research: An ingredient present at a small fraction of the studied dose is unlikely to match the findings. See whether the label discloses every dose, then compare each with the amounts used in human studies.
• Human evidence: Look for a published, placebo-controlled trial of the product itself. Most products in this category have none. They lean on ingredient studies, animal data or traditional use.
• Branded ingredients: Extracts with brand names (KSM-66, Sensoril, Cognizin, Furosap and SYN-COLL are examples) are standardized, and some have their own studies, often funded by the supplier. A brand name by itself doesn't tell you the product uses a studied dose.
• Manufacturing and testing: In the US, supplements must be made under the FDA's current good manufacturing practice (cGMP) rules. A certificate of analysis from an independent lab is a helpful extra check on purity and dose.
• Refund terms: Read the conditions, not only the number of days. Many guarantees want containers back at the warehouse inside the window, and they don't refund shipping.

Product Rankings

The ranking reflects our overall assessment of ingredients and doses, published evidence, openness about the formula, guarantee terms, safety and value:

Swipe for more

Rank 1: Kollagen Intensiv in Detail

Top pick: anti-aging face creams | 67-Day Money-Back Guarantee (seller's terms apply)

This topical anti-aging face cream is built around the SYN-COLL peptide, with retinol, other peptides and hyaluronic acid. Ingredient percentages are not disclosed.

Kollagen Intensiv may suit someone who wants a peptide-plus-retinol face cream in a single product and is willing to give it two to three months. The headline SYN-COLL claims rest on unpublished supplier and brand studies. That makes retinol the part with the best independent evidence, though its concentration isn't disclosed.

Our Findings

• Formula: This is a topical face cream, not an oral supplement. It contains the SYN-COLL peptide, retinol, other peptides, hyaluronic acid and vitamins C and E. No percentages are given.
• Evidence: No trial of the finished cream has been published. The wrinkle data for SYN-COLL come from the supplier and the brand and aren't peer reviewed. Retinol is the better-supported ingredient, but its concentration isn't disclosed.
• Guarantee: 67 days. Unused product must go back in its original container, and shipping is not refunded (official product page).
• Cautions: Retinol can cause dryness and redness at first and makes skin more sensitive to the sun. If you're pregnant, trying to conceive or breastfeeding, ask a doctor before using retinol.

Read our complete Kollagen Intensiv review

2. HerSolution: Closer Look

Top pick: women's libido supplements | 67-Day Money-Back Guarantee (seller's terms apply)

Leading Edge Health makes this once-daily herbal pill, which contains niacin, hops, Mucuna, ginkgo, epimedium and cayenne and is marketed for women's libido. The product has no published trial, and ingredient amounts aren't disclosed.

HerSolution may fit a healthy woman who takes no regular medication, wants an herbal option to try and would use the refund policy if it doesn't help. Its main drawbacks are the lack of any clinical trial of the formula and undisclosed doses. Several ingredients (levodopa, plant estrogens, ginkgo) also carry real cautions.

Our Findings

• Formula: Six listed ingredients in a once-daily pill: niacin, hops, Mucuna pruriens (25% L-DOPA), ginkgo, epimedium and cayenne. Amounts are missing from the official pages.
• Evidence: No trial of HerSolution has been published. There are essentially no trials of its herbs in women for desire or arousal, and ginkgo hasn't reliably outperformed placebo.
• Guarantee: 67 days from delivery. You can try it for 60 days, but containers have to reach the warehouse within 67 days of delivery, "no exceptions." Shipping isn't refunded, and each customer gets one refund.
• Cautions: Mucuna is a source of levodopa. Hops and epimedium act like estrogen, and ginkgo can raise bleeding risk. Don't use it during pregnancy or if you have a hormone-sensitive condition.

Read our complete HerSolution review

3. Provestra: Closer Look

Alternative pick: women's libido supplements | 67-Day Money-Back Guarantee (seller's terms apply)

Leading Edge Health sells this once-daily herbal and vitamin tablet. It lists 21 ingredients, among them black cohosh, licorice, damiana, ginkgo and valerian, and is marketed for women's libido and hormonal balance. There's no published trial, and amounts aren't disclosed.

A healthy woman taking no medication, who likes the idea of a broad herbal-plus-vitamin formula and would use the refund policy if needed, might consider Provestra. Its product hasn't been trialed, and doses aren't disclosed. Black cohosh and licorice are the reason women with liver, heart or blood-pressure problems should avoid it or ask a doctor first.

Our Findings

• Formula: One tablet daily, with 21 herbs, vitamins and minerals listed, such as L-arginine, black cohosh, licorice, damiana, ginkgo, valerian and kudzu. Amounts aren't shown.
• Evidence: No trial of Provestra has been published. The sales page relies on a buyer survey, not a controlled study. For libido, even the best-studied herb in the mix, black cohosh, has no supporting evidence.
• Guarantee: 67 days from delivery. You can try it for 60 days, but containers have to reach the warehouse within 67 days of delivery, "no exceptions." Shipping isn't refunded, and each customer gets one refund.
• Cautions: Rare liver injury has been linked to black cohosh. Licorice can raise blood pressure, and valerian may add to drowsiness. Don't use it in pregnancy.

Read our complete Provestra review

4. Total Curve: Closer Look

Breast enhancement cream + capsules | 67-Day Money-Back Guarantee (seller's terms apply)

Leading Edge Health sells this breast-enhancement system, pairing a daily phytoestrogen herb supplement with a topical gel that contains the cosmetic ingredient Volufiline. There's no published trial of the product, and amounts aren't disclosed.

Think of Total Curve as an option for women who are curious about non-surgical breast enhancement and who accept thin evidence. They should be willing to claim a refund if it disappoints. The 'up to 8.4%' claim traces back to an unpublished study of the gel ingredient, not of Total Curve, and the hormone-active herbs in the pill make it unsuitable for some women.

Our Findings

• Formula: A daily herbal pill containing fennel, dong quai, black cohosh, hops, wild yam and others, along with a gel that includes the cosmetic ingredient Volufiline. Amounts aren't given.
• Evidence: The product itself hasn't been trialed. Its "up to 8.4%" figure was taken from an unpublished study of the gel ingredient, and human evidence that the herbs increase breast size is absent.
• Guarantee: 67 days from delivery. You can try it for 60 days, but containers have to reach the warehouse within 67 days of delivery, "no exceptions." Shipping isn't refunded, and each customer gets one refund.
• Cautions: Estrogen-like activity in several herbs means you should avoid it with hormone-sensitive cancers, endometriosis or fibroids. Black cohosh has been tied to rare liver injury.

Strengths and Drawbacks

• ✓ Ingredient names are published for both parts
• ✓ A 67-day (from delivery) money-back guarantee, with no autoship
• ✓ A non-invasive option for people who want to experiment before thinking about anything medical
• ✗ Total Curve hasn't been trialed, and the Volufiline data is unpublished supplier data
• ✗ 'Up to 8.4%' is a best-case result from 32 women, and no control group is described
• ✗ Hormone-active herbs, including black cohosh and dong quai, come with real cautions
• ✗ The product page gives no doses, serving size or directions

Read our complete Total Curve review

Buying Guide: What to Check

Whichever product in this category you consider, check these points before you buy:

• Every ingredient and dose disclosed, with no proprietary blend hiding individual amounts
• Made under FDA cGMP rules, ideally backed by an independent certificate of analysis
• A refund window long enough for a fair trial, with conditions you've actually read
• Buy from the official site if you want the money-back guarantee to apply
• Marketing claims that stay realistic, with no promise to cure anything or guarantee an outcome

Safety Considerations

The products discussed in this article are sold as dietary supplements, cosmetics or consumer devices, not medicines. None is intended to diagnose, treat, cure or prevent any disease. These statements have not been evaluated by the Food and Drug Administration (FDA).

Speak with a qualified healthcare professional before you start any supplement, especially if you take prescription medication, have a medical condition, or are pregnant or breastfeeding. Results differ between people.

Final Recommendation

Women who are curious about non-surgical breast enhancement, accept thin evidence and are willing to claim a refund are Total Curve's audience. Avoid it with hormone-sensitive cancers, endometriosis or fibroids, liver disease or blood thinners, and during pregnancy or breastfeeding. Elsewhere in this article the products serve other goals: Kollagen Intensiv is our top pick among anti-aging face creams, and HerSolution for women's libido. If you decide to buy, order from the official site so the money-back guarantee is available to you, and read its conditions first.